scrolledwindow: Support nested scrolling

While it's possible to scroll GtkScrolledWindow with touchscreen gestures, currently it doesn't work for touchpad: GtkScrolledWindow never propagates scroll events and if multiple scrolled windows are nested, only the inner one will receive any events. Since e9fe270e94, GtkScrolledWindow handles only full scroll sequences, but still accepts any scroll sequence, causing issues with nested scrolling. Take another step and keep track of the sequence state, checking the direction when a smooth scroll starts and only claiming the sequence if the scrolled window can scroll in the direction of the current scrolling, and otherwise denying it and ignoring any further events until it ends. The check must be done on the bubble phase because if there are nested scrolled windows that can scroll in the same direction, we want to pick the inner one and not the outer one. The check also has to be done in the scroll signal handler, since we don't have scroll deltas available in scroll-begin. After we determine the direction and claim the sequence, we can switch to the capture phase and proceed with scrolling as usual. This also means that there are 3 states of the sequence state: a sequence can be claimed, denied, or during the first invocation of the scroll signal handler it's undecided. This neatly maps to GtkEventSequenceState, so we can reuse it.
tests: Add a nested scrolling test
2020-12-15 21:21:49 +05:00 · 2020-12-14 18:53:00 +05:00
2929 changed files with 342308 additions and 408647 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,32 +0,0 @@
-# SPDX-FileCopyrightText: 2021 The GTK Authors
-# SPDX-License-Identifier: CC0-1.0
-
-root = true
-
-[*]
-charset = utf-8
-end_of_line = lf
-trim_trailing_whitespace = true
-
-[*.[ch]]
-indent_size = 2
-indent_style = space
-insert_final_newline = true
-# For the legacy tabs which still exist in the code:
-tab_width = 8
-
-[*.ui]
-indent_size = 2
-indent_style = space
-insert_final_newline = true
-
-[*.xml]
-indent_size = 2
-indent_style = space
-
-[meson.build]
-indent_size = 2
-indent_style = space
-
-[*.md]
-max_line_length = 80
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,6 @@ stages:
  - analysis
  - docs
  - flatpak
-  - publish
  - deploy

 .cache-paths: &cache-paths
@@ -25,8 +24,9 @@ variables:
  BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
  FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
  MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v36"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v25"
  FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
+  DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v25"

 .only-default:
  only:
@@ -43,7 +43,6 @@ style-check-diff:
    - .gitlab-ci/run-style-check-diff.sh

 .build-fedora-default:
-  extends: .only-default
  image: $FEDORA_IMAGE
  artifacts:
    when: always
@@ -58,10 +57,8 @@ style-check-diff:
      - "${CI_PROJECT_DIR}/_build/report*.xml"
      - "${CI_PROJECT_DIR}/_build/report*.html"
      - "${CI_PROJECT_DIR}/_build/testsuite/reftests/output/*/*.png"
-      - "${CI_PROJECT_DIR}/_build/testsuite/tools/output/*/*"
      - "${CI_PROJECT_DIR}/_build/testsuite/gsk/compare/*/*/*.png"
      - "${CI_PROJECT_DIR}/_build/testsuite/css/output/*/*.syscap"
-      - "${CI_PROJECT_DIR}/_build_hello/meson-logs"
  cache:
    key: "$CI_JOB_NAME"
    paths:
@@ -79,19 +76,12 @@ fedora-x86_64:
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=debug --default-library=both"
  script:
-    - .gitlab-ci/show-info-linux.sh
    - meson subprojects update
-    - mkdir _install
-    - meson --prefix=${CI_PROJECT_DIR}/_install
-            ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
            _build
-    - meson compile -C _build
-    - meson install -C _build
-    - PKG_CONFIG_PATH=${CI_PROJECT_DIR}/_install/lib64/pkgconfig:${CI_PROJECT_DIR}/_install/share/pkgconfig meson setup _build_hello examples/hello
-    - LD_LIBRARY_PATH=${CI_PROJECT_DIR}/_install/lib64 meson compile -C _build_hello
+    - ninja -C _build
    - .gitlab-ci/run-tests.sh _build x11
    - .gitlab-ci/run-tests.sh _build wayland
-    - .gitlab-ci/run-tests.sh _build waylandgles
    - .gitlab-ci/run-tests.sh _build broadway

 release-build:
@@ -101,7 +91,6 @@ release-build:
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=release"
  script:
-    - .gitlab-ci/show-info-linux.sh
    - meson subprojects update
    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
            _build
@@ -116,7 +105,6 @@ installed-tests:
    EXTRA_MESON_FLAGS: "--prefix=/usr --libdir=/usr/lib64 -Dinstall-tests=true"
    G_TEST_ACCESSIBLE: 1
  script:
-    - .gitlab-ci/show-info-linux.sh
    - meson subprojects update
    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
            _build
@@ -133,7 +121,6 @@ installed-tests:


 .mingw-defaults:
-  extends: .only-default
  stage: build
  tags:
    - win32-ps
@@ -156,56 +143,6 @@ msys2-mingw64:
  variables:
    MSYSTEM: "MINGW64"
    CHERE_INVOKING: "yes"
-  artifacts:
-    when: always
-    expose_as: 'Windows_DLL_MSYS2_64_bit_toolchain'
-    paths:
-      - "${CI_PROJECT_DIR}/_build/gtkdll.tar.gz"
-
-macos:
-  extends: .only-default
-  only:
-    - branches@GNOME/gtk
-  stage: build
-  tags:
-    - macos
-  needs: []
-  before_script:
-    - bash .gitlab-ci/show-info-osx.sh
-    - pip3 install --user meson==0.59
-    - pip3 install --user ninja
-    - export PATH=/Users/gitlabrunner/Library/Python/3.7/bin:$PATH
-    - export MESON_FORCE_BACKTRACE=1
-  script:
-    - meson -Dx11-backend=false
-            -Dbroadway-backend=true
-            -Dmacos-backend=true
-            -Dmedia-gstreamer=disabled
-            -Dintrospection=disabled
-            -Dcpp_std=c++11
-            -Dpixman:tests=disabled
-            _build
-    - ninja -C _build
-  artifacts:
-    when: always
-    paths:
-      - "${CI_PROJECT_DIR}/_build/meson-logs"
-
-vs2017-x64:
-  extends: .only-default
-  # TODO: Uncomment this when ready to merge.
-  #only:
-  #  - branches@GNOME/gtk
-  stage: build
-  tags:
-    - win32-ps
-  needs: []
-  script:
-    - .gitlab-ci/test-msvc.bat
-  artifacts:
-    when: always
-    paths:
-      - "${CI_PROJECT_DIR}/_build/meson-logs"

 .flatpak-defaults:
  image: $FLATPAK_IMAGE
@@ -226,11 +163,11 @@ vs2017-x64:
  extends: .flatpak-defaults
  when: manual

-# Only build Flatpak bundles automatically on main
-.flatpak-main:
+# Only build Flatpak bundles automatically on master
+.flatpak-master:
  extends: .flatpak-defaults
  only:
-    - main
+    - master

 flatpak-manual:demo:
  extends: .flatpak-manual
@@ -238,8 +175,8 @@ flatpak-manual:demo:
  variables:
    APPID: org.gtk.Demo4

-flatpak-main:demo:
-  extends: .flatpak-main
+flatpak-master:demo:
+  extends: .flatpak-master
  needs: []
  variables:
    APPID: org.gtk.Demo4
@@ -250,8 +187,8 @@ flatpak-manual:widget-factory:
  variables:
    APPID: org.gtk.WidgetFactory4

-flatpak-main:widget-factory:
-  extends: .flatpak-main
+flatpak-master:widget-factory:
+  extends: .flatpak-master
  needs: []
  variables:
    APPID: org.gtk.WidgetFactory4
@@ -262,8 +199,8 @@ flatpak-manual:icon-browser:
  variables:
    APPID: org.gtk.IconBrowser4

-flatpak-main:icon-browser:
-  extends: .flatpak-main
+flatpak-master:icon-browser:
+  extends: .flatpak-master
  needs: []
  variables:
    APPID: org.gtk.IconBrowser4
@@ -273,18 +210,18 @@ flatpak-main:icon-browser:
 # https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/DevOps-with-Flatpak
 nightly demo:
    extends: '.publish_nightly'
-    dependencies: ['flatpak-main:demo']
-    needs: ['flatpak-main:demo']
+    dependencies: ['flatpak-master:demo']
+    needs: ['flatpak-master:demo']

 nightly factory:
    extends: '.publish_nightly'
-    dependencies: ['flatpak-main:widget-factory']
-    needs: ['flatpak-main:widget-factory']
+    dependencies: ['flatpak-master:widget-factory']
+    needs: ['flatpak-master:widget-factory']

 nightly icon-browser:
    extends: '.publish_nightly'
-    dependencies: ['flatpak-main:icon-browser']
-    needs: ['flatpak-main:icon-browser']
+    dependencies: ['flatpak-master:icon-browser']
+    needs: ['flatpak-master:icon-browser']

 static-scan:
  image: $FEDORA_IMAGE
@@ -318,37 +255,29 @@ asan-build:
  allow_failure: true

 reference:
-  image: $FEDORA_IMAGE
+  image: $DOCS_IMAGE
  stage: docs
  needs: []
  variables:
-    EXTRA_MESON_FLAGS: "--buildtype=release --force-fallback-for=gdk-pixbuf,pango"
+    EXTRA_MESON_FLAGS: "--buildtype=release"
  script:
-    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} -Dgtk_doc=true -Dgdk-pixbuf:gtk_doc=true -Dpango:gtk_doc=true _build
-    - meson compile -C _build
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} -Dgtk_doc=true _build
+    - ninja -C _build gdk4-doc gsk4-doc gtk4-doc
    - mkdir -p _reference/
-    - mv _build/docs/reference/gdk/gdk4/ _reference/gdk4/
-    - mv _build/docs/reference/gdk/gdk4-x11/ _reference/gdk4-x11/
-    - mv _build/docs/reference/gdk/gdk4-wayland/ _reference/gdk4-wayland/
-    - mv _build/docs/reference/gsk/gsk4/ _reference/gsk4/
-    - mv _build/docs/reference/gtk/gtk4/ _reference/gtk4/
-    - mv _build/subprojects/pango/docs/Pango/ _reference/Pango/
-    - mv _build/subprojects/pango/docs/PangoCairo/ _reference/PangoCairo/
-    - mv _build/subprojects/pango/docs/PangoFc/ _reference/PangoFc/
-    - mv _build/subprojects/pango/docs/PangoFT2/ _reference/PangoFT2/
-    - mv _build/subprojects/pango/docs/PangoOT/ _reference/PangoOT/
-    - mv _build/subprojects/pango/docs/PangoXft/ _reference/PangoXft/
-    - mv _build/subprojects/gdk-pixbuf/docs/gdk-pixbuf/ _reference/gdk-pixbuf/
-    - mv _build/subprojects/gdk-pixbuf/docs/gdk-pixdata/ _reference/gdk-pixdata/
+    - mv _build/docs/reference/gdk/html/ _reference/gdk/
+    - mv _build/docs/reference/gsk/html/ _reference/gsk/
+    - mv _build/docs/reference/gtk/html/ _reference/gtk/
  artifacts:
    paths:
      - _reference

-publish-docs:
-  stage: publish
+pages:
+  stage: deploy
  needs: ['reference']
  script:
-    - "curl -X POST -F token=${PAGES_TRIGGER_TOKEN} -F ref=docs-gtk-org https://gitlab.gnome.org/api/v4/projects/665/trigger/pipeline"
+    - mv _reference/ public/
+  artifacts:
+    paths:
+      - public
  only:
-    refs:
-      - main
+    - master
--- a/.gitlab-ci/README.md
+++ b/.gitlab-ci/README.md
@@ -17,8 +17,8 @@ branch, as well as their available versions.
 ### Checklist for Updating a CI image

 - [ ] Update the `${image}.Dockerfile` file with the dependencies
- - [ ] Run `./run-docker.sh build --base ${image} --version ${number}`
- - [ ] Run `./run-docker.sh push --base ${image} --version ${number}`
+ - [ ] Run `./run-docker.sh build --base ${image} --base-version ${number}`
+ - [ ] Run `./run-docker.sh push --base ${image} --base-version ${number}`
   once the Docker image is built; you may need to log in by using
   `docker login` or `podman login`
 - [ ] Update the `image` keys in the `.gitlab-ci.yml` file with the new
@@ -30,8 +30,8 @@ branch, as well as their available versions.
 - [ ] Write a new `${image}.Dockerfile` with the instructions to set up
   a build environment
 - [ ] Add the `pip3 install meson` incantation
- - [ ] Run `./run-docker.sh build --base ${image} --version ${number}`
- - [ ] Run `./run-docker.sh push --base ${image} --version ${number}`
+ - [ ] Run `./run-docker.sh build --base ${image} --base-version ${number}`
+ - [ ] Run `./run-docker.sh push --base ${image} --base-version ${number}`
 - [ ] Add the new job to `.gitlab-ci.yml` referencing the image
 - [ ] Open a merge request with your changes and let it run

--- a/.gitlab-ci/fedora-base.Dockerfile
+++ b/.gitlab-ci/fedora-base.Dockerfile
@@ -0,0 +1,91 @@
+FROM fedora:31
+
+RUN dnf -y install \
+    adwaita-icon-theme \
+    atk-devel \
+    at-spi2-atk-devel \
+    avahi-gobject-devel \
+    cairo-devel \
+    cairo-gobject-devel \
+    ccache \
+    clang \
+    clang-analyzer \
+    colord-devel \
+    cups-devel \
+    dbus-daemon \
+    dbus-x11 \
+    dejavu-sans-mono-fonts \
+    desktop-file-utils \
+    diffutils \
+    elfutils-libelf-devel \
+    fribidi-devel \
+    gcc \
+    gcc-c++ \
+    gdk-pixbuf2-devel \
+    gdk-pixbuf2-modules \
+    gettext \
+    git \
+    glib2-devel \
+    glib2-static \
+    glibc-devel \
+    glibc-headers \
+    gnome-desktop-testing \
+    gobject-introspection-devel \
+    graphene-devel \
+    gstreamer1-devel \
+    gstreamer1-plugins-good \
+    gstreamer1-plugins-bad-free-devel \
+    gstreamer1-plugins-base-devel \
+    gtk-doc \
+    hicolor-icon-theme \
+    iso-codes \
+    itstool \
+    json-glib-devel \
+    lcov \
+    libasan \
+    libattr-devel \
+    libcloudproviders-devel \
+    libepoxy-devel \
+    libffi-devel \
+    libmount-devel \
+    librsvg2 \
+    libselinux-devel \
+    libubsan \
+    libXcomposite-devel \
+    libXcursor-devel \
+    libXcursor-devel \
+    libXdamage-devel \
+    libXfixes-devel \
+    libXi-devel \
+    libXinerama-devel \
+    libxkbcommon-devel \
+    libXrandr-devel \
+    libXrender-devel \
+    libXtst-devel \
+    libxslt \
+    mesa-dri-drivers \
+    mesa-libEGL-devel \
+    mesa-libwayland-egl-devel \
+    ninja-build \
+    pango-devel \
+    pcre-devel \
+    pcre-static \
+    python3 \
+    python3-jinja2 \
+    python3-pip \
+    python3-pygments \
+    python3-wheel \
+    redhat-rpm-config \
+    sassc \
+    systemtap-sdt-devel \
+    vulkan-devel \
+    wayland-devel \
+    wayland-protocols-devel \
+    weston \
+    weston-libs \
+    which \
+    xorg-x11-server-Xvfb \
+ && dnf clean all
+
+RUN pip3 install meson==0.55.3
+
--- a/.gitlab-ci/fedora-docs.Dockerfile
+++ b/.gitlab-ci/fedora-docs.Dockerfile
@@ -0,0 +1,12 @@
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v25
+
+RUN dnf -y install pandoc
+
+ARG HOST_USER_ID=5555
+ENV HOST_USER_ID ${HOST_USER_ID}
+RUN useradd -u $HOST_USER_ID -ms /bin/bash user
+
+USER user
+WORKDIR /home/user
+
+ENV LANG C.UTF-8
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,103 +1,4 @@
-FROM fedora:34
-
-RUN dnf -y install \
-    adwaita-icon-theme \
-    atk-devel \
-    at-spi2-atk-devel \
-    avahi-gobject-devel \
-    cairo-devel \
-    cairo-gobject-devel \
-    ccache \
-    clang \
-    clang-analyzer \
-    clang-tools-extra \
-    colord-devel \
-    cups-devel \
-    dbus-daemon \
-    dbus-x11 \
-    dejavu-sans-mono-fonts \
-    desktop-file-utils \
-    diffutils \
-    elfutils-libelf-devel \
-    fribidi-devel \
-    gcc \
-    gcc-c++ \
-    gdk-pixbuf2-devel \
-    gdk-pixbuf2-modules \
-    gettext \
-    git \
-    glib2-devel \
-    glib2-static \
-    glibc-devel \
-    glibc-headers \
-    gnome-desktop-testing \
-    gobject-introspection-devel \
-    graphene-devel \
-    graphviz \
-    gstreamer1-devel \
-    gstreamer1-plugins-good \
-    gstreamer1-plugins-bad-free-devel \
-    gstreamer1-plugins-base-devel \
-    hicolor-icon-theme \
-    iso-codes \
-    itstool \
-    json-glib-devel \
-    lcov \
-    libasan \
-    libattr-devel \
-    libcloudproviders-devel \
-    libepoxy-devel \
-    libffi-devel \
-    libjpeg-turbo-devel \
-    libmount-devel \
-    libpng-devel \
-    librsvg2 \
-    libselinux-devel \
-    libtiff-devel \
-    libubsan \
-    libXcomposite-devel \
-    libXcursor-devel \
-    libXcursor-devel \
-    libXdamage-devel \
-    libXfixes-devel \
-    libXi-devel \
-    libXinerama-devel \
-    libxkbcommon-devel \
-    libXrandr-devel \
-    libXrender-devel \
-    libXtst-devel \
-    libxslt \
-    mesa-dri-drivers \
-    mesa-libEGL-devel \
-    mesa-libGLES-devel \
-    meson \
-    ninja-build \
-    pango-devel \
-    pcre-devel \
-    pcre-static \
-    python3 \
-    python3-docutils \
-    python3-gobject \
-    python3-jinja2 \
-    python3-markdown \
-    python3-pip \
-    python3-pygments \
-    python3-toml \
-    python3-typogrify \
-    python3-wheel \
-    redhat-rpm-config \
-    sassc \
-    systemtap-sdt-devel \
-    vulkan-devel \
-    wayland-devel \
-    wayland-protocols-devel \
-    weston \
-    weston-libs \
-    which \
-    xorg-x11-server-Xvfb \
- && dnf install -y 'dnf-command(builddep)' \
- && dnf builddep -y wayland \
- && dnf clean all
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v25

 # Enable sudo for wheel users
 RUN sed -i -e 's/# %wheel/%wheel/' -e '0,/%wheel/{s/%wheel/# %wheel/}' /etc/sudoers
--- a/.gitlab-ci/flatpak-build.sh
+++ b/.gitlab-ci/flatpak-build.sh
@@ -24,7 +24,6 @@ flatpak build ${builddir} meson \
                -Dbuild-examples=false \
                -Dintrospection=disabled \
                -Ddemos=true \
-                -Dprofile=devel \
                _flatpak_build

 flatpak build ${builddir} ninja -C _flatpak_build install
@@ -43,6 +42,6 @@ flatpak build-bundle \
        ${appid}

 # to be consumed by the nightly publish jobs
-if [[ $CI_COMMIT_BRANCH == main ]]; then
+if [[ $CI_COMMIT_BRANCH == master ]]; then
        tar cf repo.tar ${repodir}
 fi
--- a/.gitlab-ci/meson-html-report.py
+++ b/.gitlab-ci/meson-html-report.py
@@ -268,7 +268,7 @@ aparser.add_argument('--job-id', metavar='ID',
                     default=None)
 aparser.add_argument('--branch', metavar='NAME',
                     help='Branch of the project being tested',
-                     default='main')
+                     default='master')
 aparser.add_argument('--output', metavar='FILE',
                     help='The output HTML file, stdout by default',
                     type=argparse.FileType('w', encoding='UTF-8'),
--- a/.gitlab-ci/meson-junit-report.py
+++ b/.gitlab-ci/meson-junit-report.py
@@ -27,7 +27,7 @@ aparser.add_argument('--job-id', metavar='ID',
                     default='Unknown')
 aparser.add_argument('--branch', metavar='NAME',
                     help='Branch of the project being tested',
-                     default='main')
+                     default='master')
 aparser.add_argument('--output', metavar='FILE',
                     help='The output file, stdout by default',
                     type=argparse.FileType('w', encoding='UTF-8'),
--- a/.gitlab-ci/pages/fonts.css
+++ b/.gitlab-ci/pages/fonts.css
@@ -1,154 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2021 GNOME Foundation
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
- */
-
-/**
- * RedHat Fonts taken from https://github.com/RedHatOfficial/RedHatFont
- * License: SIL Open Font License 1.1 http://scripts.sil.org/OFL
- */
-@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700&family=Red+Hat+Display:ital,wght@0,400;0,500;0,700;0,900;1,400;1,500;1,700;1,900&display=swap');
-@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700&display=swap');
-@import url('https://fonts.googleapis.com/css2?family=Source+Code+Pro:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600&display=swap');
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Regular.woff2") format("woff2"),
-       url("RedHatDisplay-Regular.woff") format("woff");
-  font-style: normal;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-RegularItalic.woff2") format("woff2"),
-       url("RedHatDisplay-RegularItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Medium.woff2") format("woff2"),
-       url("RedHatDisplay-Medium.woff") format("woff");
-  font-style: normal;
-  font-weight: 500;
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--- a/.gitlab-ci/pages/index.html
+++ b/.gitlab-ci/pages/index.html
@@ -1,149 +0,0 @@
-<!--
-SPDX-FileCopyrightText: 2021 GNOME Foundation
-
-SPDX-License-Identifier: LGPL-2.1-or-later
-->
-
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <title>GTK Documentation</title>
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-
-  <meta charset="utf-8" />
-
-  <meta property="og:site_name" content="https://docs.gtk.org"/>
-  <meta property="og:title" content="GTK Documentation"/>
-  <meta property="og:url" content="https://docs.gtk.org"/>
-  <meta property="og:type" content="website"/>
-  <meta property="og:description" content="API reference for GTK"/>
-
-  <meta name="twitter:title" content="GTK Documentation"/>
-  <meta name="twitter:url" content="https://docs.gtk.org"/>
-  <meta name="twitter:card" content="summary"/>
-
-  <link rel="canonical" href="https://docs.gtk.org"/>
-
-  <link rel="stylesheet" href="style.css" type="text/css" />
-
-  <script src="main.js"></script>
-
-  <!--[if IE]><script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
-</head>
-
-<body>
-  <div id="body-wrapper" tabindex="-1">
-
-    <nav class="sidebar">
-      
-      <div class="section">
-        <img src="gtk-logo.svg" class="logo"/>
-      </div>
-
-      <div class="section">
-        <h5>Sections</h5>
-        <div class="links">
-          <a href="#user-interface">User interface</a>
-          <a href="#core-libraries">Core libraries</a>
-        </div>
-      </div>
-
-    </nav>
-    
-    <button id="btn-to-top" class="hidden"><span class="up-arrow"></span></button>
-
-    <section id="main" class="content">
-      <header>
-        <h1>GTK Documentation</h1>
-      </header>
-
-      <div class="toggle-wrapper">
-        <h4 id="user-interface">
-          User interface
-          <a href="#user-interface" class="anchor"></a>
-        </h4>
-
-        <div class="docblock">
-          <h5 id="gdk">GTK</h5>
-          <p>GTK is the primary library used to construct user interfaces. It
-          provides user interface controls and signal callbacks to respond to
-          user actions.</p>
-          <p><a href="https://docs.gtk.org/gtk4/">GTK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk">GSK</h5>
-          <p>An intermediate layer which provides a rendering API implemented using Cairo, OpenGL or Vulkan.</p>
-          <p><a href="https://docs.gtk.org/gsk4/">GSK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk">GDK</h5>
-          <p>An intermediate layer which isolates GTK from the details of the windowing system.</p>
-          <p><a href="https://docs.gtk.org/gdk4/">GDK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="pango">Pango</h5>
-          <p>Pango is the core text and font handling library used in GTK
-          applications. It has extensive support for the different writing
-          systems used throughout the world.</p>
-          <p><a href="https://docs.gtk.org/Pango/">Pango API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk-pixbuf">GdkPixbuf</h5>
-          <p>GdkPixbuf is a library for image loading and manipulation.</p>
-          <p><a href="https://docs.gtk.org/gdk-pixbuf/">GdkPixbuf API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="cairo">Cairo</h5>
-          <p>Cairo is a 2D graphics library with support for multiple output
-          devices. It is designed to produce consistent, high quality output
-          on all media.</p>
-          <p><a href="https://www.cairographics.org/manual/" class="external">Cairo API reference</a></p>
-        </div>
-      </div>
-
-      <div class="toggle-wrapper">
-        <h4 id="core-libraries" style="display:flex;">
-          Core libraries
-          <a href="#core-libraries" class="anchor"></a>
-        </h4>
-
-        <div class="docblock">
-          <h5 id="glib">GLib</h5>
-          <p>GLib provides the core application building blocks for libraries
-          and applications written in C. It provides common data types
-          used in GTK, the main loop implementation, and a large set of
-          utility functions for strings and general portability across
-          different platforms.</p>
-          <p><a href="https://developer.gnome.org/glib/" class="external">GLib API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gobject">GObject</h5>
-          <p>GObject provides the object system used by GTK.</p>
-          <p><a href="https://developer.gnome.org/gobject/" class="external">GObject API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gio">GIO</h5>
-          <p>GIO provides a portable, modern and easy-to-use file system
-          abstraction API for accessing local and remote files; a set of
-          low and high level abstractions over the <a href="https://www.freedesktop.org/wiki/Software/dbus/" class="external">DBus</a>
-          IPC specification; an application settings API; portable networking
-          abstractions; and additional utilities for writing asynchronous
-          operations without blocking the user interface of your application.</p>
-          <p><a href="https://developer.gnome.org/gio/" class="external">GIO API reference</a></p>
-        </div>
-      </div>
-
-    </section>
-
-    <footer>
-    </footer>
-  </div>
-</body>
-</html>
--- a/.gitlab-ci/pages/main.js
+++ b/.gitlab-ci/pages/main.js
@@ -1,140 +0,0 @@
-// SPDX-FileCopyrightText: 2021 GNOME Foundation
-//
-// SPDX-License-Identifier: LGPL-2.1-or-later
-
-// eslint-disable-next-line no-unused-vars
-function hasClass(elem, className) {
-    return elem && elem.classList && elem.classList.contains(className);
-}
-
-// eslint-disable-next-line no-unused-vars
-function addClass(elem, className) {
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-        return;
-    }
-    elem.classList.add(className);
-}
-
-// eslint-disable-next-line no-unused-vars
-function removeClass(elem, className) {
-    if (!elem || !elem.classList) {
-        return;
-    }
-    elem.classList.remove(className);
-}
-
-function insertAfter(newNode, referenceNode) {
-    referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
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-
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-        var i;
-        if (reversed !== true) {
-            for (i = 0; i < length; ++i) {
-                if (func(arr[i]) === true) {
-                    return true;
-                }
-            }
-        } else {
-            for (i = length - 1; i >= 0; --i) {
-                if (func(arr[i]) === true) {
-                    return true;
-                }
-            }
-        }
-    }
-    return false;
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-
-function onEachLazy(lazyArray, func, reversed) {
-    return onEach(
-        Array.prototype.slice.call(lazyArray),
-        func,
-        reversed);
-}
-
-// eslint-disable-next-line no-unused-vars
-function hasOwnProperty(obj, property) {
-    return Object.prototype.hasOwnProperty.call(obj, property);
-}
-
-window.addEventListener("load", function() {
-    "use strict;"
-
-    var main = document.getElementById("main");
-    var btnToTop = document.getElementById("btn-to-top");
-
-    function labelForToggleButton(isCollapsed) {
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-
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-        toggle.innerHTML = "[<span class=\"inner\">"
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-
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-
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-            onEachLazy(this.parentNode.getElementsByClassName("docblock"), function(e) {
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-            });
-        } else {
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-                           + "</span>]";
-            onEachLazy(this.parentNode.getElementsByClassName("docblock"), function(e) {
-                addClass(e, "hidden");
-            });
-        }
-    }
-
-    onEachLazy(document.getElementsByClassName("toggle-wrapper"), function(e) {
-        let sectionHeader = e.querySelector(".section-header");
-        let fragmentMatches = sectionHeader !== null && location.hash === "#" + sectionHeader.getAttribute('id');
-        collapsedByDefault = hasClass(e, "default-hide") && !fragmentMatches;
-        var toggle = createToggle(collapsedByDefault);
-        toggle.onclick = toggleClicked;
-        e.insertBefore(toggle, e.firstChild);
-        if (collapsedByDefault) {
-            addClass(toggle, "collapsed");
-            onEachLazy(e.getElementsByClassName("docblock"), function(d) {
-                addClass(d, "hidden");
-            });
-        }
-    });
-
-    function scrollBackTop(e) {
-        e.preventDefault();
-        window.scroll({
-            top: 0,
-            behavior: 'smooth',
-        });
-    }
-
-    function toggleScrollButton() {
-        if (window.scrollY < 400) {
-            addClass(btnToTop, "hidden");
-        } else {
-            removeClass(btnToTop, "hidden");
-        }
-    }
-
-    window.onscroll = toggleScrollButton;
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-}, false);
--- a/.gitlab-ci/pages/style.css
+++ b/.gitlab-ci/pages/style.css
@@ -1,747 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2021 GNOME Foundation
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
- */
-
-@import url("fonts.css");
-
-/*********************************
- * LIGHT THEME
- *********************************/
-:root {
-
-  /* colors */
-  --text-color: #333;
-  --text-color-muted: #999;
-  --primary: rgb(28, 118, 228);
-  --body-bg: #fff;
-  --sidebar-primary: rgb(144, 194, 255);
-  --sidebar-bg: #151515;
-  --sidebar-selected-bg: var(--primary);
-  --sidebar-text-color: #fafafa;
-  --sidebar-padding: 1.5em;
-
-  /* boxes, e.g. code blocks */
-  --box-bg: rgba(135, 135, 135, 0.085);
-  --box-radius: 0.35rem;
-  --box-padding: 0.75rem;
-  --box-margin: 0.75rem 0;
-  --box-text-color: #111;
-
-  /* typography */
-  --body-font-family: "Noto Serif",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
-  --body-font-scale: 0.95;
-  --body-font-size: calc(var(--body-font-scale) * clamp(16px, 1vw, 20px));
-  --body-font-weight: normal;
-
-  --monospace-font-family: "Source Code Pro", monospace;
-  --monospace-font-size: calc(0.86 * var(--body-font-size)); /* Monospace fonts are very different in terms of font-sizes. Adjust this value to scale it */
-
-  --heading-font-family: "Red Hat Display", var(--body-font-family);
-  --heading-weight: 900;
-  --heading-font-scale: 1.05;
-
-  --heading-small-font-family: var(--heading-font-family);
-  --heading-small-weight: 600;
-  --heading-small-font-scale: 1;
-
-  --heading-table-font-family: var(--heading-font-family);
-  --heading-table-weight: 600;
-
-  --heading-docblock-color: #6d6d6d;  /* docblocks have headings from source comments. we want them to differ.*/
-  --heading-docblock-scale: 0.9;        /* docblocks have headings from source comments. we want them to differ.*/
-
-  --symbol-font-family: var(--heading-font-family);
-  --symbol-font-weight: 500;
-  --symbol-font-scale: 1;
-
-  --table-font-size: 0.92em;    /* Tables often contain lots information. It's better to scale them down a big to get more sutff fitted inside */
-
-  /* misc */
-  --prefered-content-width: 90ch; /* The preferred width for the readable content */
-  --anchor-sign: "#";
-
-} 
-
-/*********************************
- * DARK THEME (overrides)
- *********************************/
- @media (prefers-color-scheme: dark) {
-  :root {
-    --primary: rgb(144, 194, 255);
-    --text-color: #f6f6f6;
-    --text-color-muted: #686868;
-    --body-bg: #121212;
-    --sidebar-primary: rgb(144, 194, 255);
-    --sidebar-bg: #1e1e1e;
-    --sidebar-selected-bg: rgb(17, 112, 228);
-    --sidebar-text-color: #fafafa;
-    --box-bg: rgba(135, 135, 135, 0.1);
-    --box-text-color: #fff;
-    --heading-docblock-color: #b7b7b7;
-  }
-
-  /* fix dark theme syntax highlighting with a filter (for now) */
-  .highlight pre span {
-  	filter: brightness(6);
-  }
-}
-
-/*********************************
- * GENERAL STYLING
- *********************************/
-*,
-*:before,
-*:after {
-  box-sizing: border-box;
-}
-
-::-moz-selection {
-  color: white;
-  background: var(--primary);
-}
-
-::selection {
-  color: white;
-  background: var(--primary);
-}
-
-::-webkit-scrollbar {
-  width: 8px;
-  height: 8px;
-}
-
-::-webkit-scrollbar-thumb {
-  border-radius: 10px;
-  background: rgba(128, 128, 128, 0.6);
-}
-
-::-webkit-scrollbar-thumb:hover {
-  background: rgba(128, 128, 128, 1);
-}
-
-::-webkit-scrollbar-track {
-  background: rgba(128, 128, 128, 0.15);
-}
-
-* {
-  scrollbar-width: initial;
-}
-
-body {
-  font: 16px/1.5 var(--body-font-family);
-  font-weight: var(--body-font-weight);
-  font-size: var(--body-font-size);
-  margin: 0;
-  padding: 0;
-  position: relative;
-
-  -webkit-font-feature-settings: "kern", "liga";
-  -moz-font-feature-settings: "kern", "liga";
-  font-feature-settings: "kern", "liga";
-  color: var(--text-color);
-  background: var(--body-bg);
-}
-
-h1, h2, h3, h4, h5, h6 {
-  font-family: var(--heading-font-family);
-  font-weight: var(--heading-weight);
-  margin: 1.75em 0 0.75em 0;
-  display: flex;
-  align-items: center;
-}
-
-h1 {
-  font-size: calc(1.75em * var(--heading-font-scale));
-}
-
-
-header h1 {
-  margin-top: 0;
-}
-
-h2 {
-  font-size: calc(1.4em * var(--heading-font-scale));
-}
-
-h3 {
-  font-size: calc(1.2em * var(--heading-font-scale));
-}
-
-header h3 {
-  color: var(--text-color-muted);
-  margin-bottom: 0;
-}
-
-h4, h5 {
-  font-size: calc(1em * var(--heading-font-scale));
-}
-
-h6 {
-  font-size: calc(1em * var(--heading-small-font-scale));
-  font-family: var(--heading-small-font-family);
-  font-weight: var(--heading-small-weight);
-}
-
-ol, ul {
-  padding-left: 1rem;
-}
-
-ul ul, ol ul, ul ol, ol ol {
-  margin-bottom: .6em;
-}
-
-p {
-  margin: 0 0 .6em 0;
-}
-
-a {
-  color: var(--primary);
-  text-decoration: none;
-}
-
-a:hover {
-  text-decoration: underline;
-}
-
-summary {
-  outline: none;
-}
-
-blockquote {
-  border-left: 3px solid var(--primary);
-  background: var(--box-bg);
-  padding: var(--box-padding);
-  border-radius: var(--box-radius);
-  margin: var(--box--margin);
-}
-
-code, 
-pre {
-  font-family: var(--monospace-font-family);
-  font-size: var(--monospace-font-size);
-  color: var(--box-text-color);
-}
-
-pre {
-  background: var(--box-bg);
-  padding: var(--box-padding);
-  border-radius: var(--box-radius);
-  overflow: auto;
-}
-
-code {
-  background: var(--box-bg);
-  padding: 0 0.35em;
-  border-radius: 0.35rem;
-  word-break: break-word;
-}
-
-a > code {
-  color: var(--primary);
-}
-
-
-pre pre,
-pre code {
-  padding: 0;
-  margin: 0;
-  font-size: 1em;
-  background: none;
-  color: inherit;
-}
-
-h1 code, h2 code, h3 code, h4 code, h5 code, h6 code {
-  font-family: inherit;
-  font-weight: inherit;
-  font-size: 0.85em;
-}
-
-strong, b {
-  font-weight: 600;
-}
-
-/* fix unwanted margins in tables, code, lists and blockquotes */
-li > *:first-child,
-li > *:first-child > *:first-child,
-li > *:first-child > *:first-child > *:first-child,
-td > *:first-child,
-td > *:first-child > *:first-child,
-td > *:first-child > *:first-child > *:first-child,
-pre > *:first-child,
-pre > *:first-child > *:first-child,
-pre > *:first-child > *:first-child > *:first-child,
-blockquote > *:first-child,
-blockquote > *:first-child > *:first-child,
-blockquote > *:first-child > *:first-child > *:first-child {
-  margin-top: 0;
-}
-li > *:last-child,
-li > *:last-child > *:last-child,
-li > *:last-child > *:last-child > *:last-child,
-td > *:last-child,
-td > *:last-child > *:last-child,
-td > *:last-child > *:last-child > *:last-child,
-pre > *:last-child,
-pre > *:last-child > *:last-child,
-pre > *:last-child > *:last-child > *:last-child,
-blockquote > *:last-child,
-blockquote > *:last-child > *:last-child,
-blockquote > *:last-child > *:last-child > *:last-child {
-  margin-bottom: 0;
-}
-
-/*********************************
- * PAGE STRUCTURE
- *********************************/
-#body-wrapper {
-  display: flex;
-  flex-wrap: nowrap;
-  flex-direction: row;
-}
-
-#body-wrapper:focus {
-  outline: none;
-}
-
-#main {
-  position: relative;
-  flex-grow: 1;
-  min-width: 0;
-  box-shadow: 0 0 134px rgba(0, 0, 0, 0.1);
-}
-
-footer {
-  width: 100%;
-  display: none;
-}
-
-/*********************************
- * Button
- *********************************/
-
-#btn-to-top {
-  position: fixed;
-  bottom: 12px;
-  right: 32px;
-  z-index: 1000;
-  border-radius: 50%;
-  width: 42px;
-  height: 42px;
-  border: 1px solid var(--primary);
-  background: var(--box-bg);
-  color: var(--text-color);
-  cursor: pointer;
-  text-transform: none;
-}
-
-#btn-to-top > .up-arrow:after {
-  content: "🡅"
-}
-
-/*********************************
- * SIDEBAR
- *********************************/
-.sidebar {
-  scrollbar-width: thin;
-  background: var(--sidebar-bg);
-  border-right: 1px solid var(--sidebar-bg);
-  min-width: 40ch;
-  padding: var(--sidebar-padding);
-  color: var(--sidebar-text-color);
-  position: sticky;
-  top: 0;
-  z-index: 2;
-  height: 100vh;
-  overflow-y: auto;
-}
-
-.sidebar a,
-.sidebar a:hover {
-  text-decoration: none;
-}
-
-.sidebar .logo {
-  display: block;
-  margin: 2rem auto 0 auto;
-  width: 70%;
-}
-
-.sidebar .section > ul > li {
-  margin-right: -10px;
-}
-
-.sidebar .section h3, .sidebar .section h5 {
-  text-align: left;
-  padding-left: 0.5rem;
-  padding-right: 0.5rem;
-  font-weight: var(--heading-weight);
-}
-
-.sidebar .section h5 {
-  font-size: 1em;
-  margin-bottom: 0.5em;
-}
-
-.sidebar .namespace > h3 {
-  margin-bottom: 0;
-  padding: 0;
-  font-size: 1.5em;
-  text-transform: uppercase;
-  font-weight: 900;
-}
-
-.sidebar .namespace > p {
-  font-size: 0.9em;
-  opacity: 0.8;
-  padding-left: 0.5rem;
-}
-
-.sidebar .section {
-  padding-left: 0.5rem;
-  padding-right: 0.5rem;
-}
-
-.sidebar .links {
-  margin-bottom: 1rem;
-}
-
-.sidebar .section a {
-  display: block;
-  text-overflow: ellipsis;
-  overflow: hidden;
-  transition: background-color 150ms ease;
-  color: var(--sidebar-primary);
-  border-radius: var(--box-radius);
-   padding: 0.2rem 0.5rem;
-  margin-bottom: 0.15rem;
-}
-
-.sidebar .section a:hover {
-  background-color: rgba(127, 127, 127, 0.2);
-  color: var(--sidebar-text-color);
-}
-
-.sidebar .section a.current {
-  background-color: var(--sidebar-selected-bg);
-  color: white;
-}
-
-.sidebar .search {
-  box-sizing: border-box;
-  text-align: center;
-}
-
-.sidebar .search input[type="text"] {
-  border-color: transparent;
-  width: 100%;
-  border: 1px solid #ccc;
-  border-radius: 50px;
-  padding: 6px 12px;
-  display: inline-block;
-  font-size: 80%;
-  box-shadow: inset 0 1px 3px #ddd;
-  transition: border .3s linear;
-}
-
-/*********************************
- * ANCHORS & TOGGLERS
- *********************************/
-.anchor,
-.md-anchor {
-  position: relative;
-  z-index: 1;
-  text-decoration: none;
-  padding: 0 0.5em;
-  color: var(--text-color-muted);
-}
-
-.anchor:hover,
-.md-anchor:hover {
-  color: var(--primary);
-}
-
-.anchor:not([href]),
-.md-anchor:not([href]) {
-  display: none;
-}
-
-.anchor:before,
-.md-anchor:before {
-  content: var(--anchor-sign); /*'§'*/
-}
-
-.toggle-wrapper {
-  position: relative;
-}
-
-.collapse-toggle {
-  position: absolute;
-  right: 0;
-  left: -2em;
-  white-space: nowrap;
-  text-decoration: none;
-  font-size: 0.8em;
-  color: transparent;
-}
-
-.collapse-toggle > .inner {
-  width: 1rem;
-  height: 1rem;
-  border-radius: calc(0.75 * var(--box-radius));
-  display: inline-flex;
-  justify-content: center;
-  align-items: center;
-  text-align: center;
-  vertical-align: middle;
-  color: var(--box-text-color);
-  position: relative;
-  left: -0.25rem;
-  font-family: monospace;
-  font-size: 0.7rem;
-  font-weight: bold;
-  background: var(--box-bg);
-}
-
-/*********************************
- * UTILITY
- *********************************/
-.deprecated > h6 > a {
-  opacity: 0.65;
-}
-
-.hidden {
-  display: none !important;
-}
-
-/*********************************
- * CONTENT STYLING
- *********************************/
-.content {
-  padding: 2em 4em;
-  overflow: visible;
-  max-width: calc(var(--prefered-content-width) + 8em);
-}
-
-.content table:not(.table-display) {
-  border-spacing: 0 0.25rem;
-}
-
-.content td {
-  vertical-align: top;
-}
-
-.content td:first-child {
-  padding-right: 1rem;
-}
-
-.content td p:first-child {
-  margin-top: 0;
-}
-
-.content td h1, .content td h2 {
-  margin-left: 0;
-  font-size: 1.1em;
-}
-
-.content tr:first-child td {
-  border-top: 0;
-}
-
-kbd {
-  display: inline-block;
-  padding: 3px 5px;
-  font: 15px monospace;
-  line-height: 10px;
-  vertical-align: middle;
-  border: solid 1px;
-  border-radius: 3px;
-  box-shadow: inset 0 -1px 0;
-  cursor: default;
-}
-
-.content tr:first-child {
-  border-bottom: 1px solid rgba(0, 0, 0, 0.35);
-}
-
-.content td {
-  vertical-align: top;
-}
-
-.content td:first-child {
-  padding-right: 1rem;
-}
-
-.content td p:first-child {
-  margin-top: 0;
-}
-
-.content td h4, .content td h5 {
-  margin-left: 0;
-  font-size: 1.1em;
-}
-
-.content tr:first-child td {
-  border-top: 0;
-}
-
-.srclink {
-  color: var(--text-color-muted);
-  font-size: 1rem;
-  font-weight: var(--body-font-weight);
-  flex-grow: 0;
-  text-decoration: none;
-  margin-left: auto;
-  position: relative;
-  z-index: 1;
-}
-
-.meta tr > td:not(:first-child) {
-  width: 100%;
-}
-
-.meta tr > td:first-child {
-  white-space: nowrap;
-}
-
-/*********************************
- * DOCBLOCK STYLING
- *********************************/
-.docblock {
-  position: relative;
-  text-align: left;
-}
-
-.docblock h1 {
-  font-size: calc(1.3em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h2 {
-  font-size: calc(1.2em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h3 {
-  font-size: calc(1.1em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h4 {
-  font-size: calc(1.05em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h1,
-.docblock h2,
-.docblock h3,
-.docblock h4,
-.docblock h5,
-.docblock h6 {
-  color: var(--heading-docblock-color)
-}
-
-.docblock table {
-  margin: .25em 0;
-  max-width: 100%;
-  font-size: var(--table-font-size);
-}
-
-.docblock table td {
-  padding: .25em;
-}
-
-.docblock table th {
-  padding: .25em;
-  text-align: left;
-  font-family: var(--heading-table-font-family);
-  font-weight: var(--heading-table-weight);
-}
-
-.docblock table tr th:first-child,
-.docblock table tr td:first-child {
-  padding-left: 0;
-}
-
-.docblock table tr th:last-child,
-.docblock table tr td:last-child {
-  padding-right: 0;
-}
-
-table.enum-members,
-table.results {
-  border-radius: var(--box-radius);
-  border: 1px solid var(--text-color-muted);
-  border-spacing: 0 0 !important;
-  font-size: 80%;
-}
-
-table.enum-members tr th,
-table.results tr th {
-  border-top-color: var(--body-bg);
-  background-color: var(--box-bg);
-  border-bottom: 1px solid var(--text-color-muted);
-}
-
-table.enum-members tr th:first-child,
-table.enum-members tr td:first-child {
-  min-width: 25em;
-  padding-left: .5em;
-}
-
-table.results tr th:first-child,
-table.results tr td:first-child {
-  padding-left: .5em;
-}
-
-table.enum-members tr th:last-child,
-table.enum-members tr td:last-child,
-table.results tr th:last-child,
-table.results tr td:last-child {
-  max-width: 35em;
-  padding-right: .5em;
-}
-
-table.results tr td code {
-  font-size: 100%;
-}
-
-.docblock ul li,
-.docblock ol li {
-  padding-top: 0.15rem;
-  padding-bottom: 0.15rem;
-}
-
-.docblock ul.type {
-  list-style: none;
-}
-
-.docblock ul.type li::before {
-  content: "»";
-  color: var(--text-color);
-  display: inline-block;
-  width: 1em;
-  margin-left: -1em;
-}
-
-/**************************
- RESPONSIVENESS
-**************************/
-@media (max-width: 700px) {
-  body {
-    padding-top: 0px;
-  }
-
-  #body-wrapper {
-    flex-direction: column;
-    overflow: hidden;
-  }
-
-  #main {
-    width: 100%;
-    padding: 2rem;
-  }
-
-  .sidebar {
-    position: static;
-    height: initial;
-    order: 1;
-  }
-}
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -32,7 +32,7 @@ while (($# > 0)); do
                list) list=1;;
                help) print_help=1;;
                --base|-b) read_arg base "$@" || shift;;
-                --version|-v) read_arg base_version "$@" || shift;;
+                --base-version) read_arg base_version "$@" || shift;;
                --no-login) no_login=1;;
                *) echo -e "\e[1;31mERROR\e[0m: Unknown option '$1'"; exit 1;;
        esac
--- a/.gitlab-ci/run-style-check-diff.sh
+++ b/.gitlab-ci/run-style-check-diff.sh
@@ -2,7 +2,7 @@

 set -e

-# We need to add a new remote for the upstream main, since this script could
+# We need to add a new remote for the upstream master, since this script could
 # be running in a personal fork of the repository which has out of date branches.
 if [ "${CI_PROJECT_NAMESPACE}" != "GNOME" ]; then
    echo "Retrieving the current upstream repository from ${CI_PROJECT_NAMESPACE}/${CI_PROJECT_NAME}..."
@@ -16,7 +16,7 @@ fi

 # Work out the newest common ancestor between the detached HEAD that this CI job
 # has checked out, and the upstream target branch (which will typically be
-# `upstream/main` or `upstream/gtk-3-24`).
+# `upstream/master` or `upstream/gtk-3-24`).
 #
 # `${CI_MERGE_REQUEST_TARGET_BRANCH_NAME}` is only defined if we’re running in
 # a merge request pipeline; fall back to `${CI_DEFAULT_BRANCH}` otherwise.
@@ -36,7 +36,7 @@ exit_status=$?
 echo ""
 echo "Note that clang-format output is advisory and cannot always match the"
 echo "GTK coding style, documented at:"
-echo "   https://gitlab.gnome.org/GNOME/gtk/blob/main/docs/CODING-STYLE"
+echo "   https://gitlab.gnome.org/GNOME/gtk/blob/master/docs/CODING-STYLE"
 echo "Warnings from this tool can be ignored in favour of the documented "
 echo "coding style, or in favour of matching the style of existing"
 echo "surrounding code."
--- a/.gitlab-ci/run-tests.sh
+++ b/.gitlab-ci/run-tests.sh
@@ -8,8 +8,7 @@ builddir=$1
 backend=$2

 # Ignore memory leaks lower in dependencies
-export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp:print_suppressions=0
-export G_SLICE=always-malloc
+export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp

 case "${backend}" in
  x11)
@@ -44,24 +43,6 @@ case "${backend}" in
    kill ${compositor}
    ;;

-  waylandgles)
-    export XDG_RUNTIME_DIR="$(mktemp -p $(pwd) -d xdg-runtime-XXXXXX)"
-
-    weston --backend=headless-backend.so --socket=wayland-6 --idle-time=0 &
-    compositor=$!
-    export WAYLAND_DISPLAY=wayland-6
-
-    meson test -C ${builddir} \
-                --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}" \
-                --print-errorlogs \
-                --setup=${backend} \
-                --suite=gtk \
-                --no-suite=gsk-compare-broadway
-
-    exit_code=$?
-    kill ${compositor}
-    ;;
-
  broadway)
    export XDG_RUNTIME_DIR="$(mktemp -p $(pwd) -d xdg-runtime-XXXXXX)"

@@ -80,12 +61,6 @@ case "${backend}" in
    exit_code=0
    kill ${server}
    ;;
-
-  *)
-    echo "Failed to add ${backend} to .gitlab-ci/run-tests.sh"
-    exit 1
-    ;;
-
 esac

 cd ${builddir}
--- a/.gitlab-ci/show-info-linux.sh
+++ b/.gitlab-ci/show-info-linux.sh
@@ -1,5 +0,0 @@
-#! /bin/sh
-
-. /etc/os-release
-
-echo $PRETTY_NAME
--- a/.gitlab-ci/show-info-osx.sh
+++ b/.gitlab-ci/show-info-osx.sh
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -eux -o pipefail
-
-xcodebuild -version || :
-xcodebuild -showsdks || :
-
-system_profiler SPSoftwareDataType || :
--- a/.gitlab-ci/test-docker.sh
+++ b/.gitlab-ci/test-docker.sh
@@ -15,7 +15,7 @@ meson \
        -Dx11-backend=true \
        -Dwayland-backend=true \
        -Dbroadway-backend=true \
-        -Dvulkan=enabled \
+        -Dvulkan=yes \
        -Dprofiler=true \
        --werror \
        ${EXTRA_MESON_FLAGS:-} \
--- a/.gitlab-ci/test-msvc.bat
+++ b/.gitlab-ci/test-msvc.bat
@@ -1,14 +0,0 @@
-@echo on
-:: vcvarsall.bat sets various env vars like PATH, INCLUDE, LIB, LIBPATH for the
-:: specified build architecture
-call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x64
-@echo on
-
-:: FIXME: make warnings fatal
-pip3 install --upgrade --user meson==0.59 || goto :error
-meson -Ddebug=false -Dmedia-gstreamer=disabled _build || goto :error
-ninja -C _build || goto :error
-
-goto :EOF
-:error
-exit /b 1
--- a/.gitlab-ci/test-msys2.sh
+++ b/.gitlab-ci/test-msys2.sh
@@ -15,9 +15,9 @@ pacman --noconfirm -Suy
 pacman --noconfirm -S --needed \
    base-devel \
    git \
-    mingw-w64-$MSYS2_ARCH-cc \
+    mingw-w64-$MSYS2_ARCH-toolchain \
    mingw-w64-$MSYS2_ARCH-ccache \
-    mingw-w64-$MSYS2_ARCH-pkgconf \
+    mingw-w64-$MSYS2_ARCH-pkg-config \
    mingw-w64-$MSYS2_ARCH-gobject-introspection \
    mingw-w64-$MSYS2_ARCH-meson \
    mingw-w64-$MSYS2_ARCH-adwaita-icon-theme \
@@ -30,9 +30,8 @@ pacman --noconfirm -S --needed \
    mingw-w64-$MSYS2_ARCH-libepoxy \
    mingw-w64-$MSYS2_ARCH-pango \
    mingw-w64-$MSYS2_ARCH-fribidi \
-    mingw-w64-$MSYS2_ARCH-gst-plugins-bad-libs \
-    mingw-w64-$MSYS2_ARCH-shared-mime-info \
-    mingw-w64-$MSYS2_ARCH-python-gobject
+    mingw-w64-$MSYS2_ARCH-gst-plugins-bad \
+    mingw-w64-$MSYS2_ARCH-shared-mime-info

 mkdir -p _ccache
 export CCACHE_BASEDIR="$(pwd)"
@@ -41,7 +40,7 @@ export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
 # https://gitlab.gnome.org/GNOME/gtk/-/issues/2243
 # https://gitlab.gnome.org/GNOME/gtk/-/issues/3002

-if ! pkg-config --atleast-version=2.66.0 glib-2.0; then
+if ! pkg-config --atleast-version=2.65.0 glib-2.0; then
    git clone https://gitlab.gnome.org/GNOME/glib.git _glib
    meson setup _glib_build _glib
    meson compile -C _glib_build
@@ -49,7 +48,7 @@ if ! pkg-config --atleast-version=2.66.0 glib-2.0; then
 fi
 pkg-config --modversion glib-2.0

-if ! pkg-config --atleast-version=1.50.0 pango; then
+if ! pkg-config --atleast-version=1.47.0 pango; then
    git clone https://gitlab.gnome.org/GNOME/pango.git _pango
    meson setup _pango_build _pango
    meson compile -C _pango_build
@@ -73,5 +72,3 @@ unset CCACHE_DISABLE

 ninja -C _build
 ccache --show-stats
-
-tar zcf _build/gtkdll.tar.gz _build/gtk/libgtk*.dll
--- a/.gitlab/issue_templates/Bug.md
+++ b/.gitlab/issue_templates/Bug.md
@@ -1,13 +1,4 @@
-<!--
-  Please, read the CONTRIBUTING.md guide on how to file a new issue.
-
-  https://gitlab.gnome.org/GNOME/gtk/-/blob/main/CONTRIBUTING.md
-->
 ## Steps to reproduce
-<!--
-  Please, explain the sequence of actions necessary to reproduce the
-  bug
-->

 1. ...
 2. ...
@@ -41,8 +32,5 @@
 ## Additional information
 <!--
 - Screenshots or screen recordings are useful for visual errors
-  - Attaching a screenshot or a video without explaining the current
-    behavior and the actions necessary to reproduce the bug will lead
-    to the bug being closed
 - Please report any warning or message printed on the terminal
 -->
--- a/.gitlab/issue_templates/Crash.md
+++ b/.gitlab/issue_templates/Crash.md
@@ -1,14 +1,4 @@
-<!--
-  Please, read the CONTRIBUTING.md guide on how to file a new issue.
-
-  https://gitlab.gnome.org/GNOME/gtk/-/blob/main/CONTRIBUTING.md
-->
-
 ## Steps to reproduce
-<!--
-  Please, explain the sequence of actions necessary to reproduce the
-  crash
-->

 1. ...
 2. ...
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -256,7 +256,7 @@ people committing to GTK to follow a few rules:
 0. Always write a meaningful commit message. Changes without a sufficient
   commit message will be reverted.

-0. Never push to the `main` branch, or any stable branches, directly; you
+0. Never push to the `master` branch, or any stable branches, directly; you
   should always go through a merge request, to ensure that the code is
   tested on the CI infrastructure at the very least. A merge request is
   also the proper place to get a comprehensive code review from the core
--- a/9817
+++ b/9817
--- a/NEWS.pre-4.0
+++ b/NEWS.pre-4.0
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 GTK — The GTK toolkit
 =====================

-[![Build status](https://gitlab.gnome.org/GNOME/gtk/badges/main/pipeline.svg)](https://gitlab.gnome.org/GNOME/gtk/-/commits/main)
+[![Build status](https://gitlab.gnome.org/GNOME/gtk/badges/master/pipeline.svg)](https://gitlab.gnome.org/GNOME/gtk/-/commits/master)

 General information
 -------------------
@@ -10,16 +10,14 @@ GTK is a multi-platform toolkit for creating graphical user interfaces.
 Offering a complete set of widgets, GTK is suitable for projects ranging
 from small one-off projects to complete application suites.

-GTK is a free and open-source software project. The licensing terms
-for GTK, the GNU LGPL, allow it to be used by all developers, including those
-developing proprietary software, without any license fees or royalties.
-
-GTK is hosted by the GNOME project (thanks!) and used by a wide variety
-of applications and projects.
+GTK is free software and part of the GNU Project. However, the
+licensing terms for GTK, the GNU LGPL, allow it to be used by all
+developers, including those developing proprietary software, without any
+license fees or royalties.

 The official download location

-  - https://download.gnome.org/sources/gtk/
+  - https://download.gnome.org/sources/gtk+

 The official web site

@@ -34,16 +32,9 @@ Discussion forum
  - https://discourse.gnome.org/c/platform/core/

 Nightly documentation can be found at
-  - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk4/
-  - Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk4/
-  - Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk4/
-
-Nightly flatpaks of our demos can be installed from the
-[GNOME Nightly](https://wiki.gnome.org/Apps/Nightly) repository:
-  - `flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo`
-  - `flatpak install gnome-nightly org.gtk.Demo4`
-  - `flatpak install gnome-nightly org.gtk.WidgetFactory4`
-  - `flatpak install gnome-nightly org.gtk.IconBrowser4`
+  - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk/
+  - Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk/
+  - Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk/

 Building and installing
 -----------------------
@@ -58,11 +49,11 @@ In order to build GTK you will need:
 You will also need various dependencies, based on the platform you are
 building for:

-  - [GLib](https://download.gnome.org/sources/glib/)
-  - [GdkPixbuf](https://download.gnome.org/sources/gdk-pixbuf/)
-  - [GObject-Introspection](https://download.gnome.org/sources/gobject-introspection/)
-  - [Cairo](https://www.cairographics.org/)
-  - [Pango](https://download.gnome.org/sources/pango/)
+  - [GLib](https://download.gnome.org/sources/glib)
+  - [GdkPixbuf](https://download.gnome.org/sources/gdk-pixbuf)
+  - [GObject-Introspection](https://download.gnome.org/sources/gobject-introspection)
+  - [Cairo](https://www.cairographics.org)
+  - [Pango](https://download.gnome.org/sources/pango)
  - [Epoxy](https://github.com/anholt/libepoxy)
  - [Graphene](https://github.com/ebassi/graphene)
  - [Xkb-common](https://github.com/xkbcommon/libxkbcommon)
@@ -114,21 +105,7 @@ can be found in the file:
 docs/reference/gtk/html/gtk-building.html
 ```

-Or [online](https://docs.gtk.org/gtk4/building.html)
-
-Default branch renamed to `main`
--------------------------------
-
-The default development branch of GTK has been renamed to `main`.
-To update your local checkout, use:
-```sh
-git checkout master
-git branch -m master main
-git fetch
-git branch --unset-upstream
-git branch -u origin/main
-git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main
-```
+Or [online](https://developer.gnome.org/gtk4/stable/gtk-building.html)

 How to report bugs
 ------------------
@@ -167,17 +144,14 @@ Contributing to GTK
 Please, follow the [contribution guide](./CONTRIBUTING.md) to know how to
 start contributing to GTK.

-If you want to support GTK financially, please consider donating to
-the GNOME project, which runs the infrastructure hosting GTK.
-
 Release notes
 -------------

 The release notes for GTK are part of the migration guide in the API
 reference. See:

- - [3.x release notes](https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html)
- - [4.x release notes](https://docs.gtk.org/gtk4/migrating-3to4.html)
+ - [3.x release notes](https://developer.gnome.org/gtk3/unstable/gtk-migrating-2-to-3.html)
+ - [4.x release notes](https://developer.gnome.org/gtk4/unstable/gtk-migrating-3-to-4.html)

 Licensing terms
 ---------------
--- a/build-aux/flatpak/lua-5.1.5-so.patch
+++ b/build-aux/flatpak/lua-5.1.5-so.patch
@@ -1,43 +0,0 @@
-diff -ur lua-5.1.4/src/Makefile lua-5.1.4-new/src/Makefile
--- lua-5.1.4/src/Makefile	2008-01-19 20:37:58.000000000 +0100
-+++ lua-5.1.4-new/src/Makefile	2012-02-23 18:26:43.000000000 +0100
-@@ -23,6 +23,7 @@
- PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
- 
- LUA_A=	liblua.a
-+LUA_SO=	liblua.so
- CORE_O=	lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
- 	lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o  \
- 	lundump.o lvm.o lzio.o
-@@ -36,7 +37,7 @@
- LUAC_O=	luac.o print.o
- 
- ALL_O= $(CORE_O) $(LIB_O) $(LUA_O) $(LUAC_O)
-ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
-+ALL_T= $(LUA_A) $(LUA_SO) $(LUA_T) $(LUAC_T)
- ALL_A= $(LUA_A)
- 
- default: $(PLAT)
-@@ -51,6 +52,11 @@
- 	$(AR) $@ $?
- 	$(RANLIB) $@
- 
-+$(LUA_SO): $(CORE_O) $(LIB_O)
-+	$(CC) -shared -ldl -Wl,-soname,$(LUA_SO).$(V) -o $@.$(R) $? -lm $(MYLDFLAGS)
-+	ln -sf $(LUA_SO).$(R) $(LUA_SO).$(V)
-+	ln -sf $(LUA_SO).$(R) $(LUA_SO)
-+
- $(LUA_T): $(LUA_O) $(LUA_A)
- 	$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
- 
--- lua-5.1.4/Makefile	2008-08-12 02:40:48.000000000 +0200
-+++ lua-5.1.4-new/Makefile	2012-02-23 19:06:32.000000000 +0100
-@@ -53,7 +53,7 @@
- all:	$(PLAT)
- 
- $(PLATS) clean:
-	cd src && $(MAKE) $@
-+	cd src && $(MAKE) $@ V=$(V) R=$(R)
- 
- test:	dummy
- 	src/lua test/hello.lua
--- a/build-aux/flatpak/org.gtk.Demo4.json
+++ b/build-aux/flatpak/org.gtk.Demo4.json
@@ -35,16 +35,15 @@
    "modules" : [
        {
            "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
            "builddir" : true,
            "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git",
-                    "branch" : "main"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                }
            ]
        },
@@ -94,92 +93,6 @@
                }
            ]
        },
-        {
-            "name": "boost",
-            "buildsystem": "simple",
-            "build-commands": [
-                "./bootstrap.sh --prefix=/app --with-libraries=date_time,filesystem,iostreams,locale,regex,system,thread,python,program_options,test,serialization",
-                "./b2 --build-type=minimal link=shared -j $FLATPAK_BUILDER_N_JOBS",
-                "./b2 --build-type=minimal link=shared install"
-             ],
-             "sources": [
-                 {
-                     "type": "archive",
-                     "url": "https://boostorg.jfrog.io/artifactory/main/release/1.69.0/source/boost_1_69_0.tar.bz2",
-                     "sha256": "8f32d4617390d1c2d16f26a27ab60d97807b35440d45891fa340fc2648b04406"
-                 }
-            ]
-        },
-        {
-            "name": "lua-5.1",
-            "buildsystem": "simple",
-            "build-commands": [
-                "make -j $FLATPAK_BUILDER_N_JOBS CFLAGS=\"$CFLAGS -fPIC -DLUA_USE_LINUX\" linux",
-                "make INSTALL_TOP=$FLATPAK_DEST TO_LIB='liblua.a liblua.so.5.1.5' install",
-                "ln -sf liblua.so.5.1.5 $FLATPAK_DEST/lib/liblua.so",
-                "ln -sf liblua.so.5.1.5 $FLATPAK_DEST/lib/liblua.so.5.1",
-                "install -Dm0644 etc/lua.pc $FLATPAK_DEST/lib/pkgconfig/lua.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua51.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua5.1.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua-5.1.pc"
-            ],
-            "sources": [
-                {
-                    "type": "archive",
-                    "url": "https://www.lua.org/ftp/lua-5.1.5.tar.gz",
-                    "sha256": "2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333"
-                },
-                {
-                    "type": "patch",
-                    "path": "lua-5.1.5-so.patch"
-                },
-                {
-                    "type": "shell",
-                    "commands": [
-                        "sed -i \"s|/usr/local|$FLATPAK_DEST|\" etc/lua.pc src/luaconf.h"
-                    ]
-                }
-            ],
-            "cleanup": [
-                "*.a",
-                "/bin",
-                "/include",
-                "/lib/pkgconfig",
-                "/man"
-            ]
-        },
-        {
-            "name" : "highlight",
-            "buildsystem" : "simple",
-            "builddir" : true,
-            "build-commands" : [
-                "sed -i -e 's#^PREFIX = /usr#PREFIX = /app#' makefile",
-                "make",
-                "make install"
-            ],
-            "sources" : [
-                {
-                    "type" : "archive",
-                    "url" : "http://www.andre-simon.de/zip/highlight-4.0.tar.bz2",
-                    "sha256" : "f40dcba26e011a2c67df874f4d9b0238c2c6b065163ce8de3d8371b9dfce864d"
-                }
-            ]
-        },
-        {
-            "name" : "pango",
-            "buildsystem" : "meson",
-            "builddir" : true,
-            "config-opts" : [
-                "--libdir=/app/lib"
-            ],
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/pango.git",
-                    "branch" : "main"
-                }
-            ]
-        },
        {
            "name" : "gtk",
            "buildsystem" : "meson",
@@ -187,14 +100,12 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git",
-                    "branch" : "main"
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
--- a/build-aux/flatpak/org.gtk.IconBrowser4.json
+++ b/build-aux/flatpak/org.gtk.IconBrowser4.json
@@ -35,16 +35,15 @@
    "modules" : [
        {
            "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
            "builddir" : true,
            "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git",
-                    "branch" : "main"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                }
            ]
        },
@@ -94,21 +93,6 @@
                }
            ]
        },
-        {
-            "name" : "pango",
-            "buildsystem" : "meson",
-            "builddir" : true,
-            "config-opts" : [
-                "--libdir=/app/lib"
-            ],
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/pango.git",
-                    "branch" : "main"
-                }
-            ]
-        },
        {
            "name" : "gtk",
            "buildsystem" : "meson",
@@ -116,14 +100,12 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git",
-                    "branch" : "main"
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
--- a/build-aux/flatpak/org.gtk.WidgetFactory4.json
+++ b/build-aux/flatpak/org.gtk.WidgetFactory4.json
@@ -35,16 +35,15 @@
    "modules" : [
        {
            "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
            "builddir" : true,
            "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git",
-                    "branch" : "main"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                }
            ]
        },
@@ -94,21 +93,6 @@
                }
            ]
        },
-        {
-            "name" : "pango",
-            "buildsystem" : "meson",
-            "builddir" : true,
-            "config-opts" : [
-                "--libdir=/app/lib"
-            ],
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/pango.git",
-                    "branch" : "main"
-                }
-            ]
-        },
        {
            "name" : "gtk",
            "buildsystem" : "meson",
@@ -116,14 +100,12 @@
            "config-opts" : [
                "--libdir=/app/lib",
                "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
            ],
            "sources" : [
                {
                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git",
-                    "branch" : "main"
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
--- a/build-aux/meson/dist-data.py
+++ b/build-aux/meson/dist-data.py
@@ -1,39 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import shutil
-import subprocess
-
-from pathlib import PurePath
-
-
-stylesheets = [
-    'gtk/theme/Default/Default-light.css',
-    'gtk/theme/Default/Default-dark.css',
-    'gtk/theme/Default/Default-hc.css',
-    'gtk/theme/Default/Default-hc-dark.css',
-]
-
-references = [
-    'docs/reference/gtk/gtk4',
-    'docs/reference/gsk/gsk4',
-    'docs/reference/gdk/gdk4',
-    'docs/reference/gdk/gdk4-wayland',
-    'docs/reference/gdk/gdk4-x11',
-]
-
-sourceroot = os.environ.get('MESON_SOURCE_ROOT')
-buildroot = os.environ.get('MESON_BUILD_ROOT')
-distroot = os.environ.get('MESON_DIST_ROOT')
-
-for stylesheet in stylesheets:
-    stylesheet_path = PurePath(stylesheet)
-    src = PurePath(sourceroot, stylesheet_path.with_suffix('.scss'))
-    dst = PurePath(distroot, stylesheet_path)
-    subprocess.call(['sassc', '-a', '-M', '-t', 'compact', src, dst])
-
-for reference in references:
-    src_path = os.path.join(buildroot, reference)
-    if os.path.isdir(src_path):
-        dst_path = os.path.join(distroot, reference)
-        shutil.copytree(src_path, dst_path)
--- a/build-aux/meson/gen-demo-header.py
+++ b/build-aux/meson/gen-demo-header.py
@@ -1,26 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import subprocess
-import sys
-
-repodir = sys.argv[1]
-profile = sys.argv[2]
-
-sys.stdout.write("/* This file is auto-generated. Do not edit. */\n")
-sys.stdout.write("#pragma once\n")
-sys.stdout.write("\n")
-sys.stdout.write(f"#define PROFILE \"{profile}\"\n")
-
-short_sha = os.environ.get('CI_COMMIT_SHORT_SHA')
-if short_sha is None:
-    cmd = ["git", "-C", repodir, "rev-parse", "--short", "HEAD"]
-    try:
-        with subprocess.Popen(cmd, stdout=subprocess.PIPE) as p:
-            short_sha = p.stdout.read().decode('utf-8').rstrip("\n")
-    except FileNotFoundError:
-        short_sha = ''
-        if profile != 'default':
-            short_sha = 'devel'
-
-sys.stdout.write(f"#define VCS_TAG \"{short_sha}\"\n")
--- a/build-aux/meson/post-install.py
+++ b/build-aux/meson/post-install.py
@@ -1,21 +1,20 @@
 #!/usr/bin/env python3
-
-import os
-import sys
-import subprocess
-
-if 'DESTDIR' not in os.environ:
-    gtk_api_version = sys.argv[1]
-    gtk_abi_version = sys.argv[2]
+
+import os
+import sys
+import subprocess
+
+if 'DESTDIR' not in os.environ:
+    gtk_api_version = sys.argv[1]
+    gtk_abi_version = sys.argv[2]
    gtk_libdir = sys.argv[3]
    gtk_datadir = sys.argv[4]
-    gtk_bindir = sys.argv[5]
-
-    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
-    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
-    gtk_mediamodule_dir = os.path.join(gtk_moduledir, 'media')
-
-    print('Compiling GSettings schemas...')
+
+    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
+    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
+    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')
+
+    print('Compiling GSettings schemas...')
    glib_compile_schemas = subprocess.check_output(['pkg-config',
                                                   '--variable=glib_compile_schemas',
                                                   'gio-2.0']).strip()
@@ -23,14 +22,13 @@ if 'DESTDIR' not in os.environ:
        # pkg-config variables only available since GLib 2.62.0.
        glib_compile_schemas = 'glib-compile-schemas'
    subprocess.call([glib_compile_schemas,
-                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])
-
-    print('Updating icon cache...')
-    update_icon_cache = os.path.join(gtk_bindir, 'gtk4-update-icon-cache')
-    subprocess.call([update_icon_cache, '-q', '-t' ,'-f',
-                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
-
-    print('Updating module cache for print backends...')
+                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])
+
+    print('Updating icon cache...')
+    subprocess.call(['gtk4-update-icon-cache', '-q', '-t' ,'-f',
+                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
+
+    print('Updating module cache for print backends...')
    os.makedirs(gtk_printmodule_dir, exist_ok=True)
    gio_querymodules = subprocess.check_output(['pkg-config',
                                                '--variable=gio_querymodules',
@@ -39,7 +37,7 @@ if 'DESTDIR' not in os.environ:
        # pkg-config variables only available since GLib 2.62.0.
        gio_querymodules = 'gio-querymodules'
    subprocess.call([gio_querymodules, gtk_printmodule_dir])
-
-    print('Updating module cache for media backends...')
-    os.makedirs(gtk_mediamodule_dir, exist_ok=True)
-    subprocess.call([gio_querymodules, gtk_mediamodule_dir])
+
+    print('Updating module cache for input methods...')
+    os.makedirs(gtk_immodule_dir, exist_ok=True)
+    subprocess.call([gio_querymodules, gtk_immodule_dir])
--- a/config.h.meson
+++ b/config.h.meson
@@ -0,0 +1,281 @@
+/* always defined to indicate that i18n is enabled */
+#define ENABLE_NLS 1
+
+/* Use structured logging */
+#define G_LOG_STRUCTURED 1
+
+/* The prefix for our gettext translation domains. */
+#mesondefine GETTEXT_PACKAGE
+
+/* Disable deprecation warnings from glib */
+#mesondefine GLIB_DISABLE_DEPRECATION_WARNINGS
+
+/* Define the location where the catalogs will be installed */
+#mesondefine GTK_LOCALEDIR
+
+/* Define to 1 if you have the `bind_textdomain_codeset' function. */
+#mesondefine HAVE_BIND_TEXTDOMAIN_CODESET
+
+/* Have the cloudproviders library */
+#mesondefine HAVE_CLOUDPROVIDERS
+
+/* define if we have colord */
+#mesondefine HAVE_COLORD
+
+/* Define to 1 if you have the <crt_externs.h> header file. */
+#mesondefine HAVE_CRT_EXTERNS_H
+
+/* Define to 1 if you have the `dcgettext' function. */
+#mesondefine HAVE_DCGETTEXT
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#mesondefine HAVE_DLFCN_H
+
+/* Have the ffmpeg library */
+#mesondefine HAVE_FFMPEG
+
+/* Define to 1 if you have the <ftw.h> header file. */
+#mesondefine HAVE_FTW_H
+
+/* Define to 1 if you have the `getpagesize' function. */
+#mesondefine HAVE_GETPAGESIZE
+
+/* Define to 1 if you have the `getresuid' function. */
+#mesondefine HAVE_GETRESUID
+
+/* Define if gio-unix is available */
+#mesondefine HAVE_GIO_UNIX
+
+/* Define if GStreamer support is available */
+#mesondefine HAVE_GSTREAMER
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#mesondefine HAVE_INTTYPES_H
+
+/* Define to 1 if the system has the type `IPrintDialogCallback'. */
+#mesondefine HAVE_IPRINTDIALOGCALLBACK
+
+/* Define to 1 if you have the <locale.h> header file. */
+#mesondefine HAVE_LOCALE_H
+
+/* Define to 1 if you have the `lstat' function. */
+#mesondefine HAVE_LSTAT
+
+/* Define to 1 if you have the `mallinfo' function. */
+#mesondefine HAVE_MALLINFO
+
+/* Define to 1 if you have the <memory.h> header file. */
+#mesondefine HAVE_MEMORY_H
+
+/* Define to 1 if you have the `mkstemp' function. */
+#mesondefine HAVE_MKSTEMP
+
+/* Define to 1 if you have the `mlock` function. */
+#mesondefine HAVE_MLOCK
+
+/* Define to 1 if you have a working `mmap' system call. */
+#mesondefine HAVE_MMAP
+
+/* Define to 1 if you have the `posix_fallocate' function. */
+#mesondefine HAVE_POSIX_FALLOCATE
+
+/* Have the Xrandr extension library */
+#mesondefine HAVE_RANDR
+
+/* Have the Xrandr 1.5 extension library */
+#mesondefine HAVE_RANDR15
+
+/* Define to 1 if you have the `sincos' function. */
+#mesondefine HAVE_SINCOS
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#mesondefine HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#mesondefine HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#mesondefine HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#mesondefine HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#mesondefine HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#mesondefine HAVE_SYS_PARAM_H
+
+/* Have the sysprof-capture library */
+#mesondefine HAVE_SYSPROF
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#mesondefine HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#mesondefine HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#mesondefine HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#mesondefine HAVE_UNISTD_H
+
+/* Have the XCOMPOSITE X extension */
+#mesondefine HAVE_XCOMPOSITE
+
+/* Have the Xcursor library */
+#mesondefine HAVE_XCURSOR
+
+/* Have the XDAMAGE X extension */
+#mesondefine HAVE_XDAMAGE
+
+/* Have the XFIXES X extension */
+#mesondefine HAVE_XFIXES
+
+/* Define to 1 if XFree Xinerama is available */
+#mesondefine HAVE_XFREE_XINERAMA
+
+/* Have XGenericEvent */
+#mesondefine HAVE_XGENERICEVENTS
+
+/* Define to use XKB extension */
+#mesondefine HAVE_XKB
+
+/* Have the SYNC extension library */
+#mesondefine HAVE_XSYNC
+
+/* Define to 1 if you have the `_lock_file' function */
+#mesondefine HAVE__LOCK_FILE
+
+/* Define to 1 if you have the `flockfile' function */
+#mesondefine HAVE_FLOCKFILE
+
+/* Define if _NL_MEASUREMENT_MEASUREMENT is available */
+#mesondefine HAVE__NL_MEASUREMENT_MEASUREMENT
+
+/* Define if _NL_PAPER_HEIGHT is available */
+#mesondefine HAVE__NL_PAPER_HEIGHT
+
+/* Define if _NL_PAPER_WIDTH is available */
+#mesondefine HAVE__NL_PAPER_WIDTH
+
+/* Define if _NL_TIME_FIRST_WEEKDAY is available */
+#mesondefine HAVE__NL_TIME_FIRST_WEEKDAY
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#mesondefine LT_OBJDIR
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+#mesondefine NO_MINUS_C_MINUS_O
+
+/* Define to the address where bug reports for this package should be sent. */
+#mesondefine PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#mesondefine PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#mesondefine PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#mesondefine PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#mesondefine PACKAGE_URL
+
+/* Define to the version of this package. */
+#mesondefine PACKAGE_VERSION
+
+/* Use NSBundle functions to determine load paths for libraries, translations,
+   etc. */
+#mesondefine QUARTZ_RELOCATION
+
+/* Define to 1 if you have the ANSI C header files. */
+#mesondefine STDC_HEADERS
+
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# undef _TANDEM_SOURCE
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+
+
+/* Define to 1 if XInput 2.2 is available */
+#mesondefine XINPUT_2_2
+
+/* Define to 1 if the X Window System is missing or not being used. */
+#mesondefine X_DISPLAY_MISSING
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#mesondefine _FILE_OFFSET_BITS
+
+/* defines how to decorate public symbols while building */
+#mesondefine _GDK_EXTERN
+
+/* Define for large files, on AIX-style hosts. */
+#mesondefine _LARGE_FILES
+
+/* Define to 1 if on MINIX. */
+#mesondefine _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+#mesondefine _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#mesondefine _POSIX_SOURCE
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#mesondefine gid_t
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#mesondefine uid_t
+
+/* Define to 1 if linux/memfd.h exists */
+#mesondefine HAVE_LINUX_MEMFD_H
+
+#mesondefine HAVE_LINUX_INPUT_H
+
+#mesondefine HAVE_DEV_EVDEV_INPUT_H
+
+#mesondefine GTK_SYSCONFDIR
+
+#mesondefine GTK_LOCALEDIR
+
+#mesondefine GTK_DATADIR
+
+#mesondefine GTK_LIBDIR
+
+#mesondefine GTK_PRINT_BACKENDS
+
+#mesondefine HAVE_CAIRO_SCRIPT_INTERPRETER
+
+#mesondefine HAVE_HARFBUZZ
+
+#mesondefine HAVE_PANGOFT
+
+#mesondefine ISO_CODES_PREFIX
+
+/* Define if tracker3 is available */
+#mesondefine HAVE_TRACKER3
--- a/demos/constraint-editor/meson.build
+++ b/demos/constraint-editor/meson.build
@@ -8,16 +8,14 @@ constraint_editor_sources = [
 ]

 constraint_editor_resources = gnome.compile_resources('constraint_editor_resources',
-  'constraint-editor.gresource.xml',
-  source_dir: '.',
-)
+                                                      'constraint-editor.gresource.xml',
+                                                      source_dir: '.')

 executable('gtk4-constraint-editor',
-  sources: [ constraint_editor_sources, constraint_editor_resources, ],
-  c_args: common_cflags,
-  dependencies: libgtk_dep,
-  include_directories: confinc,
-  win_subsystem: 'windows',
-  link_args: extra_demo_ldflags,
-  install: false,
-)
+           constraint_editor_sources, constraint_editor_resources,
+           c_args: common_cflags,
+           dependencies: libgtk_dep,
+           include_directories: confinc,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: false)
--- a/demos/gtk-demo/assistant.c
+++ b/demos/gtk-demo/assistant.c
@@ -98,9 +98,6 @@ create_page1 (GtkWidget *assistant)
  gtk_box_append (GTK_BOX (box), label);

  entry = gtk_entry_new ();
-  gtk_accessible_update_relation (GTK_ACCESSIBLE (entry),
-                                  GTK_ACCESSIBLE_RELATION_LABELLED_BY, label, NULL,
-                                  -1);
  gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
  gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
  gtk_box_append (GTK_BOX (box), entry);
--- a/demos/gtk-demo/background.glsl
+++ b/demos/gtk-demo/background.glsl
@@ -20,7 +20,7 @@ mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
  float b = 1.0/distance (pos, p2);
  float sum = r + g + b;

-  float alpha = 1.0 - pow (1.0/(sum), 40.0)*pow (10.0, 40.0*0.7);
+  float alpha = 1.0 - pow (1.0/(sum), 40)*pow (10.0, 40*0.7);

  fragColor = vec4 (r*0.5, g*0.5, b*0.5, 1.0) * alpha;
 }
--- a/demos/gtk-demo/clipboard.c
+++ b/demos/gtk-demo/clipboard.c
@@ -1,10 +1,12 @@
 /* Clipboard
 *
 * GdkClipboard is used for clipboard handling. This demo shows how to
- * copy and paste text, images, colors or files to and from the clipboard.
+ * copy and paste text to and from the clipboard.
 *
- * You can also use Drag-And-Drop to copy the data from the source to the
- * target.
+ * It also shows how to transfer images via the clipboard or via
+ * drag-and-drop, and how to make clipboard contents persist after
+ * the application exits. Clipboard persistence requires a clipboard
+ * manager to run.
 */

 #include <glib/gi18n.h>
@@ -12,103 +14,22 @@
 #include <string.h>
 #include "demoimage.h"

+static GtkWidget *window = NULL;
+
 static void
-copy_button_clicked (GtkStack *source_stack,
-                     gpointer  user_data)
+copy_button_clicked (GtkWidget *button,
+                     gpointer   user_data)
 {
+  GtkWidget *entry;
  GdkClipboard *clipboard;
-  const char *visible_child_name;
-  GtkWidget *visible_child;

-  clipboard = gtk_widget_get_clipboard (GTK_WIDGET (source_stack));
+  entry = GTK_WIDGET (user_data);

-  visible_child = gtk_stack_get_visible_child (source_stack);
-  visible_child_name = gtk_stack_get_visible_child_name (source_stack);
+  /* Get the clipboard object */
+  clipboard = gtk_widget_get_clipboard (entry);

-  if (strcmp (visible_child_name, "Text") == 0)
-    {
-      gdk_clipboard_set_text (clipboard, gtk_editable_get_text (GTK_EDITABLE (visible_child)));
-    }
-  else if (strcmp (visible_child_name, "Image") == 0)
-    {
-      GtkWidget *child;
-
-      for (child = gtk_widget_get_first_child (visible_child); child; child = gtk_widget_get_next_sibling (child))
-        {
-          if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (child)))
-            {
-              GtkWidget *image = gtk_widget_get_first_child (child);
-              GdkPaintable *paintable = gtk_image_get_paintable (GTK_IMAGE (image));
-
-              if (GDK_IS_TEXTURE (paintable))
-                gdk_clipboard_set (clipboard, GDK_TYPE_TEXTURE, paintable);
-              else
-                gdk_clipboard_set (clipboard, GDK_TYPE_PAINTABLE, paintable);
-              break;
-            }
-        }
-    }
-  else if (strcmp (visible_child_name, "Color") == 0)
-    {
-      GdkRGBA color;
-
-      gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (visible_child), &color);
-      gdk_clipboard_set (clipboard, GDK_TYPE_RGBA, &color);
-    }
-  else if (strcmp (visible_child_name, "File") == 0)
-    {
-      gdk_clipboard_set (clipboard, G_TYPE_FILE, g_object_get_data (G_OBJECT (visible_child), "file"), NULL);
-    }
-  else
-    {
-      g_print ("TODO");
-    }
-}
-
-static void
-present_value (GtkStack     *dest_stack,
-               const GValue *value)
-{
-  GtkWidget *child;
-
-  if (G_VALUE_HOLDS (value, G_TYPE_FILE))
-    {
-      GFile *file;
-
-      gtk_stack_set_visible_child_name (dest_stack, "File");
-      child = gtk_stack_get_visible_child (dest_stack);
-
-      file = g_value_get_object (value);
-      g_object_set (child, "label", g_file_peek_path (file), NULL);
-    }
-  else if (G_VALUE_HOLDS (value, GDK_TYPE_RGBA))
-    {
-      GdkRGBA *color;
-
-      gtk_stack_set_visible_child_name (dest_stack, "Color");
-      child = gtk_widget_get_first_child (gtk_stack_get_visible_child (dest_stack));
-
-      color = g_value_get_boxed (value);
-      g_object_set (child, "rgba", color, NULL);
-    }
-  else if (G_VALUE_HOLDS (value, GDK_TYPE_TEXTURE) ||
-           G_VALUE_HOLDS (value, GDK_TYPE_PAINTABLE))
-    {
-      GdkPaintable *paintable;
-
-      gtk_stack_set_visible_child_name (dest_stack, "Image");
-      child = gtk_stack_get_visible_child (dest_stack);
-
-      paintable = g_value_get_object (value);
-      g_object_set (child, "paintable", paintable, NULL);
-    }
-  else if (G_VALUE_HOLDS (value, G_TYPE_STRING))
-    {
-      gtk_stack_set_visible_child_name (dest_stack, "Text");
-      child = gtk_stack_get_visible_child (dest_stack);
-
-      gtk_label_set_label (GTK_LABEL (child), g_value_get_string (value));
-    }
+  /* Set clipboard text */
+  gdk_clipboard_set_text (clipboard, gtk_editable_get_text (GTK_EDITABLE (entry)));
 }

 static void
@@ -116,259 +37,149 @@ paste_received (GObject      *source_object,
                GAsyncResult *result,
                gpointer      user_data)
 {
-  GtkStack *dest_stack = user_data;
  GdkClipboard *clipboard;
-  const GValue *value;
+  GtkWidget *entry;
+  char *text;
  GError *error = NULL;

  clipboard = GDK_CLIPBOARD (source_object);
+  entry = GTK_WIDGET (user_data);

-  value = gdk_clipboard_read_value_finish (clipboard, result, &error);
-  if (value)
+  /* Get the resulting text of the read operation */
+  text = gdk_clipboard_read_text_finish (clipboard, result, &error);
+
+  if (text)
    {
-      present_value (dest_stack, value);
+      /* Set the entry text */
+      gtk_editable_set_text (GTK_EDITABLE (entry), text);
+      g_free (text);
    }
  else
    {
-      g_print ("%s\n", error->message);
+      GtkWidget *dialog;
+
+      /* Show an error about why pasting failed.
+       * Usually you probably want to ignore such failures,
+       * but for demonstration purposes, we show the error.
+       */
+      dialog = gtk_message_dialog_new (GTK_WINDOW (window),
+                                       GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL,
+                                       GTK_MESSAGE_ERROR,
+                                       GTK_BUTTONS_CLOSE,
+                                       "Could not paste text: %s",
+                                       error->message);
+      g_signal_connect (dialog, "response",
+                        G_CALLBACK (gtk_window_destroy), NULL);
+      gtk_widget_show (dialog);
+
      g_error_free (error);
    }
 }

 static void
-paste_button_clicked (GtkStack *dest_stack,
-                      gpointer  user_data)
+paste_button_clicked (GtkWidget *button,
+                      gpointer   user_data)
 {
+  GtkWidget *entry;
  GdkClipboard *clipboard;
-  GdkContentFormats *formats;

-  clipboard = gtk_widget_get_clipboard (GTK_WIDGET (dest_stack));
-  formats = gdk_clipboard_get_formats (clipboard);
+  entry = GTK_WIDGET (user_data);

-  if (gdk_content_formats_contain_gtype (formats, GDK_TYPE_TEXTURE))
-    gdk_clipboard_read_value_async (clipboard, GDK_TYPE_TEXTURE, 0, NULL, paste_received, dest_stack);
-  else if (gdk_content_formats_contain_gtype (formats, GDK_TYPE_PAINTABLE))
-    gdk_clipboard_read_value_async (clipboard, GDK_TYPE_PAINTABLE, 0, NULL, paste_received, dest_stack);
-  else if (gdk_content_formats_contain_gtype (formats, GDK_TYPE_RGBA))
-    gdk_clipboard_read_value_async (clipboard, GDK_TYPE_RGBA, 0, NULL, paste_received, dest_stack);
-  else if (gdk_content_formats_contain_gtype (formats, G_TYPE_FILE))
-    gdk_clipboard_read_value_async (clipboard, G_TYPE_FILE, 0, NULL, paste_received, dest_stack);
-  else if (gdk_content_formats_contain_gtype (formats, G_TYPE_STRING))
-    gdk_clipboard_read_value_async (clipboard, G_TYPE_STRING, 0, NULL, paste_received, dest_stack);
-}
+  /* Get the clipboard object */
+  clipboard = gtk_widget_get_clipboard (entry);

-static void
-update_copy_button_sensitivity (GtkWidget *source_stack)
-{
-  GtkButton *copy_button;
-  const char *visible_child_name;
-  GtkWidget *visible_child;
-  gboolean sensitive;
-
-  copy_button = GTK_BUTTON (g_object_get_data (G_OBJECT (source_stack), "copy-button"));
-
-  visible_child = gtk_stack_get_visible_child (GTK_STACK (source_stack));
-  visible_child_name = gtk_stack_get_visible_child_name (GTK_STACK (source_stack));
-  if (strcmp (visible_child_name, "Text") == 0)
-    {
-      sensitive = strlen (gtk_editable_get_text (GTK_EDITABLE (visible_child))) > 0;
-    }
-  else if (strcmp (visible_child_name, "Color") == 0 ||
-           strcmp (visible_child_name, "Image") == 0)
-    {
-      sensitive = TRUE;
-    }
-  else if (strcmp (visible_child_name, "File") == 0)
-    {
-      sensitive = g_object_get_data (G_OBJECT (visible_child), "file") != NULL;
-    }
-  else
-    {
-      sensitive = FALSE;
-    }
-
-  gtk_widget_set_sensitive (GTK_WIDGET (copy_button), sensitive);
-}
-
-static void
-source_changed_cb (GtkButton  *copy_button,
-                   GParamSpec *pspec,
-                   GtkWidget  *source_stack)
-{
-  update_copy_button_sensitivity (source_stack);
-}
-
-static void
-text_changed_cb (GtkButton  *copy_button,
-                 GParamSpec *pspec,
-                 GtkWidget  *entry)
-{
-  update_copy_button_sensitivity (gtk_widget_get_ancestor (entry, GTK_TYPE_STACK));
-}
-
-static void
-file_button_set_file (GtkButton *button,
-                      GFile     *file)
-{
-  gtk_label_set_label (GTK_LABEL (gtk_button_get_child (button)), g_file_peek_path (file));
-  g_object_set_data_full (G_OBJECT (button), "file", g_object_ref (file), g_object_unref);
-}
-
-static void
-file_chooser_response (GtkNativeDialog *dialog,
-                       int              response,
-                       GtkButton       *button)
-{
-  gtk_native_dialog_hide (dialog);
-
-  if (response == GTK_RESPONSE_ACCEPT)
-    {
-      GFile *file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
-      file_button_set_file (button, file);
-      g_object_unref (file);
-
-      update_copy_button_sensitivity (gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_STACK));
-    }
-
-  gtk_native_dialog_destroy (dialog);
-}
-
-static void
-open_file_cb (GtkWidget *button)
-{
-  GtkFileChooserNative *chooser;
-
-  chooser = gtk_file_chooser_native_new ("Choose a file",
-                                         GTK_WINDOW (gtk_widget_get_ancestor (button, GTK_TYPE_WINDOW)),
-                                         GTK_FILE_CHOOSER_ACTION_OPEN,
-                                         "_Open",
-                                         "_Cancel");
-
-  g_signal_connect (chooser, "response", G_CALLBACK (file_chooser_response), button);
-  gtk_native_dialog_show (GTK_NATIVE_DIALOG (chooser));
-}
-
-static void
-update_paste_button_sensitivity (GdkClipboard *clipboard,
-                                 GtkWidget    *paste_button)
-{
-  GdkContentFormats *formats;
-  gboolean sensitive = FALSE;
-
-  formats = gdk_clipboard_get_formats (clipboard);
-
-  if (gdk_content_formats_contain_gtype (formats, G_TYPE_FILE) ||
-      gdk_content_formats_contain_gtype (formats, GDK_TYPE_RGBA) ||
-      gdk_content_formats_contain_gtype (formats, GDK_TYPE_TEXTURE) ||
-      gdk_content_formats_contain_gtype (formats, GDK_TYPE_PAINTABLE) ||
-      gdk_content_formats_contain_gtype (formats, G_TYPE_STRING))
-    sensitive = TRUE;
-
-  gtk_widget_set_sensitive (paste_button, sensitive);
-}
-
-static void
-unset_clipboard_handler (gpointer data)
-{
-  GdkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (data));
-
-  g_signal_handlers_disconnect_by_func (clipboard, update_paste_button_sensitivity, data);
-}
-
-static gboolean
-on_drop (GtkStack      *dest_stack,
-         const GValue  *value,
-         double         x,
-         double         y,
-         gpointer       data)
-{
-  present_value (dest_stack, value);
-  return TRUE;
-}
-
-static GdkContentProvider *
-drag_prepare (GtkDragSource *drag_source,
-              double         x,
-              double         y,
-              gpointer       data)
-{
-  GtkWidget *button;
-  GValue value = G_VALUE_INIT;
-
-  button = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (drag_source));
-
-  if (GTK_IS_TOGGLE_BUTTON (button))
-    {
-      GtkWidget *image = gtk_widget_get_first_child (button);
-      GdkPaintable *paintable = gtk_image_get_paintable (GTK_IMAGE (image));
-
-      if (GDK_IS_TEXTURE (paintable))
-        {
-          g_value_init (&value, GDK_TYPE_TEXTURE);
-          g_value_set_object (&value, paintable);
-        }
-      else
-        {
-          g_value_init (&value, GDK_TYPE_PAINTABLE);
-          g_value_set_object (&value, paintable);
-        }
-    }
-  else
-    {
-      GFile *file = g_object_get_data (G_OBJECT (button), "file");
-
-      if (file)
-        {
-          g_value_init (&value, G_TYPE_FILE);
-          g_value_set_object (&value, file);
-        }
-      else
-        return NULL;
-    }
-
-  return gdk_content_provider_new_for_value (&value);
+  /* Request the contents of the clipboard, contents_received will be
+     called when we do get the contents.
+   */
+  gdk_clipboard_read_text_async (clipboard, NULL, paste_received, entry);
 }

 GtkWidget *
 do_clipboard (GtkWidget *do_widget)
 {
-  static GtkWidget *window = NULL;
-
  if (!window)
    {
-      GtkBuilderScope *scope;
-      GtkBuilder *builder;
-      GtkWidget *button;
+      GtkWidget *vbox, *hbox;
+      GtkWidget *label;
+      GtkWidget *entry, *button;
+      GtkWidget *image;

-      scope = gtk_builder_cscope_new ();
-      gtk_builder_cscope_add_callback_symbols (GTK_BUILDER_CSCOPE (scope),
-                                               "copy_button_clicked", G_CALLBACK (copy_button_clicked),
-                                               "paste_button_clicked", G_CALLBACK (paste_button_clicked),
-                                               "source_changed_cb", G_CALLBACK (source_changed_cb),
-                                               "text_changed_cb", G_CALLBACK (text_changed_cb),
-                                               "open_file_cb", G_CALLBACK (open_file_cb),
-                                               "on_drop", G_CALLBACK (on_drop),
-                                               "drag_prepare", G_CALLBACK (drag_prepare),
-                                               NULL);
-
-      builder = gtk_builder_new ();
-      gtk_builder_set_scope (builder, scope);
-      gtk_builder_add_from_resource (builder, "/clipboard/clipboard.ui", NULL);
-
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
+      window = gtk_window_new ();
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Clipboard");
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-      gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));

-      button = GTK_WIDGET (gtk_builder_get_object (builder, "copy_button"));
-      g_object_set_data (gtk_builder_get_object (builder, "source_stack"), "copy-button", button);
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+      gtk_widget_set_margin_start (vbox, 8);
+      gtk_widget_set_margin_end (vbox, 8);
+      gtk_widget_set_margin_top (vbox, 8);
+      gtk_widget_set_margin_bottom (vbox, 8);

-      button = GTK_WIDGET (gtk_builder_get_object (builder, "paste_button"));
-      g_signal_connect (gtk_widget_get_clipboard (button), "changed",
-                        G_CALLBACK (update_paste_button_sensitivity), button);
-      g_object_set_data_full (G_OBJECT (button), "clipboard-handler", button, unset_clipboard_handler);
+      gtk_window_set_child (GTK_WINDOW (window), vbox);

-      g_object_unref (builder);
-      g_object_unref (scope);
+      label = gtk_label_new ("\"Copy\" will copy the text\nin the entry to the clipboard");
+
+      gtk_box_append (GTK_BOX (vbox), label);
+
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+      gtk_widget_set_margin_start (hbox, 8);
+      gtk_widget_set_margin_end (hbox, 8);
+      gtk_widget_set_margin_top (hbox, 8);
+      gtk_widget_set_margin_bottom (hbox, 8);
+      gtk_box_append (GTK_BOX (vbox), hbox);
+
+      /* Create the first entry */
+      entry = gtk_entry_new ();
+      gtk_box_append (GTK_BOX (hbox), entry);
+
+      /* Create the button */
+      button = gtk_button_new_with_mnemonic (_("_Copy"));
+      gtk_box_append (GTK_BOX (hbox), button);
+      g_signal_connect (button, "clicked",
+                        G_CALLBACK (copy_button_clicked), entry);
+
+      label = gtk_label_new ("\"Paste\" will paste the text from the clipboard to the entry");
+      gtk_box_append (GTK_BOX (vbox), label);
+
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+      gtk_widget_set_margin_start (hbox, 8);
+      gtk_widget_set_margin_end (hbox, 8);
+      gtk_widget_set_margin_top (hbox, 8);
+      gtk_widget_set_margin_bottom (hbox, 8);
+      gtk_box_append (GTK_BOX (vbox), hbox);
+
+      /* Create the second entry */
+      entry = gtk_entry_new ();
+      gtk_box_append (GTK_BOX (hbox), entry);
+
+      /* Create the button */
+      button = gtk_button_new_with_mnemonic (_("_Paste"));
+      gtk_box_append (GTK_BOX (hbox), button);
+      g_signal_connect (button, "clicked",
+                        G_CALLBACK (paste_button_clicked), entry);
+
+      label = gtk_label_new ("Images can be transferred via the clipboard, too");
+      gtk_box_append (GTK_BOX (vbox), label);
+
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+      gtk_widget_set_margin_start (hbox, 8);
+      gtk_widget_set_margin_end (hbox, 8);
+      gtk_widget_set_margin_top (hbox, 8);
+      gtk_widget_set_margin_bottom (hbox, 8);
+      gtk_box_append (GTK_BOX (vbox), hbox);
+
+      /* Create the first image */
+      image = demo_image_new ("dialog-warning");
+      gtk_box_append (GTK_BOX (hbox), image);
+
+      /* Create the second image */
+      image = demo_image_new ("process-stop");
+      gtk_box_append (GTK_BOX (hbox), image);
+
+      /* Create the third image */
+      image = demo_image_new ("weather-clear");
+      gtk_box_append (GTK_BOX (hbox), image);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/clipboard.ui
+++ b/demos/gtk-demo/clipboard.ui
@@ -1,288 +0,0 @@
-
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="resizable">1</property>
-    <property name="title">Clipboard</property>
-    <child>
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <property name="margin-start">12</property>
-        <property name="margin-end">12</property>
-        <property name="margin-top">12</property>
-        <property name="margin-bottom">12</property>
-        <property name="spacing">12</property>
-        <child>
-          <object class="GtkLabel">
-            <property name="label">“Copy” will copy the selected data the clipboard, “Paste” will show the current clipboard contents. You can also drag the data to the bottom.</property>
-            <property name="wrap">1</property>
-            <property name="max-width-chars">40</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="spacing">12</property>
-            <child>
-              <object class="GtkDropDown" id="source_chooser">
-                <property name="valign">center</property>
-                <property name="model">
-                  <object class="GtkStringList">
-                    <items>
-                      <item>Text</item>
-                      <item>Color</item>
-                      <item>Image</item>
-                      <item>File</item>
-                    </items>
-                  </object>
-                </property>
-              </object>
-            </child>
-            <child>
-              <object class="GtkStack" id="source_stack">
-                <signal name="notify::visible-child" handler="source_changed_cb" object="copy_button"/>
-                <property name="vexpand">1</property>
-                <binding name="visible-child-name">
-                  <lookup name="string" type="GtkStringObject">
-                    <lookup name="selected-item">
-                      source_chooser
-                    </lookup>
-                  </lookup>
-                </binding>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Text</property>
-                    <property name="child">
-                      <object class="GtkEntry" id="source_text">
-                        <property name="valign">center</property>
-                        <signal name="notify::text" handler="text_changed_cb" object="copy_button"/>
-                        <property name="text">Copy this!</property>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Color</property>
-                    <property name="child">
-                      <object class="GtkColorButton" id="source_color">
-                        <property name="valign">center</property>
-                        <property name="rgba">purple</property>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Image</property>
-                    <property name="child">
-                      <object class="GtkBox">
-                        <property name="valign">center</property>
-                        <style>
-                          <class name="linked"/>
-                        </style>
-                        <child>
-                          <object class="GtkToggleButton" id="image_rose">
-                            <property name="active">1</property>
-                            <child>
-                              <object class="GtkDragSource">
-                                <signal name="prepare" handler="drag_prepare"/>
-                              </object>
-                            </child>
-                            <child>
-                              <object class="GtkImage">
-                                <style>
-                                  <class name="large-icons"/>
-                                </style>
-                                <property name="paintable">resource:///transparent/portland-rose.jpg</property>
-                              </object>
-                            </child>
-                          </object>
-                        </child>
-                        <child>
-                          <object class="GtkToggleButton" id="image_floppy">
-                            <property name="group">image_rose</property>
-                            <child>
-                              <object class="GtkDragSource">
-                                <signal name="prepare" handler="drag_prepare"/>
-                              </object>
-                            </child>
-                            <child>
-                              <object class="GtkImage">
-                                <style>
-                                  <class name="large-icons"/>
-                                </style>
-                                <property name="paintable">resource:///images/floppybuddy.gif</property>
-                              </object>
-                            </child>
-                          </object>
-                        </child>
-                        <child>
-                          <object class="GtkToggleButton" id="image_logo">
-                            <property name="group">image_floppy</property>
-                            <child>
-                              <object class="GtkDragSource">
-                                <signal name="prepare" handler="drag_prepare"/>
-                              </object>
-                            </child>
-                            <child>
-                              <object class="GtkImage">
-                                <style>
-                                  <class name="large-icons"/>
-                                </style>
-                                <property name="paintable">resource:///images/org.gtk.Demo4.svg</property>
-                              </object>
-                            </child>
-                          </object>
-                        </child>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">File</property>
-                    <property name="child">
-                      <object class="GtkButton" id="source_file">
-                        <child>
-                          <object class="GtkDragSource">
-                            <property name="propagation-phase">capture</property>
-                            <signal name="prepare" handler="drag_prepare"/>
-                          </object>
-                        </child>
-                        <property name="valign">center</property>
-                        <property name="child">
-                          <object class="GtkLabel">
-                            <property name="label">—</property>
-                            <property name="xalign">0</property>
-                            <property name="ellipsize">start</property>
-                          </object>
-                        </property>
-                        <signal name="clicked" handler="open_file_cb"/>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-              </object>
-            </child>
-            <child>
-              <object class="GtkButton" id="copy_button">
-                <property name="valign">center</property>
-                <property name="label" translatable="yes">_Copy</property>
-                <signal name="clicked" handler="copy_button_clicked" object="source_stack"/>
-                <property name="use-underline">1</property>
-              </object>
-            </child>
-          </object>
-        </child>
-        <child>
-          <object class="GtkSeparator">
-          </object>
-        </child>
-        <child>
-          <object class="GtkBox">
-            <property name="spacing">12</property>
-            <child>
-              <object class="GtkDropTarget">
-                <property name="actions">copy</property>
-                <property name="formats">GdkTexture GdkPaintable GFile GdkRGBA gchararray</property>
-                <signal name="drop" handler="on_drop" object="dest_stack"/>
-              </object>
-            </child>
-            <child>
-              <object class="GtkButton" id="paste_button">
-                <property name="label" translatable="yes">_Paste</property>
-                <signal name="clicked" handler="paste_button_clicked" object="dest_stack"/>
-                <property name="use-underline">1</property>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel">
-                <property name="xalign">0</property>
-                <binding name="label">
-                  <lookup name="visible-child-name" type="GtkStack">
-                    dest_stack
-                  </lookup>
-                </binding>
-              </object>
-            </child>
-            <child>
-              <object class="GtkStack" id="dest_stack">
-                <property name="halign">end</property>
-                <property name="valign">center</property>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name"></property>
-                    <property name="child">
-                      <object class="GtkLabel">
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Text</property>
-                    <property name="child">
-                      <object class="GtkLabel">
-                        <property name="halign">end</property>
-                        <property name="valign">center</property>
-                        <property name="xalign">0</property>
-                        <property name="ellipsize">end</property>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Image</property>
-                    <property name="child">
-                      <object class="GtkImage">
-                        <property name="halign">end</property>
-                        <property name="valign">center</property>
-                        <style>
-                          <class name="large-icons"/>
-                        </style>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">Color</property>
-                    <property name="child">
-                      <object class="GtkBox">
-                        <property name="halign">end</property>
-                        <property name="valign">center</property>
-                        <child>
-                          <object class="GtkColorSwatch">
-                            <property name="accessible-role">img</property>
-                            <property name="can-focus">0</property>
-                            <property name="selectable">0</property>
-                            <property name="has-menu">0</property>
-                          </object>
-                        </child>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkStackPage">
-                    <property name="name">File</property>
-                    <property name="child">
-                      <object class="GtkLabel">
-                        <property name="halign">end</property>
-                        <property name="valign">center</property>
-                        <property name="xalign">0</property>
-                        <property name="hexpand">1</property>
-                        <property name="ellipsize">start</property>
-                      </object>
-                    </property>
-                  </object>
-                </child>
-              </object>
-            </child>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-</interface>
--- a/demos/gtk-demo/cogs.glsl
+++ b/demos/gtk-demo/cogs.glsl
@@ -177,7 +177,7 @@ float ccell2(vec2 p, float r) {
 float df(vec2 p, float scale, inout vec2 nn) {
  p /= scale;
  nn = hextile(p);
-  nn = floor(nn + 0.5);
+  nn = round(nn);
  float r = hash(nn);

  float d;;
--- a/demos/gtk-demo/cogs2.glsl
+++ b/demos/gtk-demo/cogs2.glsl
@@ -179,7 +179,7 @@ float ccell2(vec2 p, float r) {
 float df(vec2 p, float scale, inout vec2 nn) {
  p /= scale;
  nn = hextile(p);
-  nn = floor(nn + 0.5);
+  nn = round(nn);
  float r = hash(nn);

  float d;;
--- a/demos/gtk-demo/cursors.c
+++ b/demos/gtk-demo/cursors.c
@@ -24,7 +24,6 @@ do_cursors (GtkWidget *do_widget)

      builder = gtk_builder_new_from_resource ("/cursors/cursors.ui");
      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
      g_signal_connect (window, "destroy",
@@ -35,7 +34,9 @@ do_cursors (GtkWidget *do_widget)
  if (!gtk_widget_get_visible (window))
    gtk_widget_show (window);
  else
-    gtk_window_destroy (GTK_WINDOW (window));
+    {
+      gtk_window_destroy (GTK_WINDOW (window));
+    }

  return window;
 }
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -15,7 +15,6 @@
    <file>demo.ui</file>
  </gresource>
  <gresource prefix="/clipboard">
-    <file>clipboard.ui</file>
    <file>demoimage.c</file>
    <file>demoimage.h</file>
  </gresource>
@@ -129,9 +128,6 @@
    <file>gtkfishbowl.c</file>
    <file>gtkfishbowl.h</file>
  </gresource>
-  <gresource prefix="/frames">
-    <file>frames.ui</file>
-  </gresource>
  <gresource prefix="/gears">
    <file>gtkgears.c</file>
    <file>gtkgears.h</file>
@@ -280,7 +276,6 @@
    <file>fishbowl.c</file>
    <file>fixed.c</file>
    <file>flowbox.c</file>
-    <file>frames.c</file>
    <file>font_features.c</file>
    <file>fontplane.c</file>
    <file>fontrendering.c</file>
@@ -322,7 +317,6 @@
    <file>paintable_emblem.c</file>
    <file>paintable_mediastream.c</file>
    <file>paintable_svg.c</file>
-    <file>paintable_symbolic.c</file>
    <file>panes.c</file>
    <file>password_entry.c</file>
    <file>peg_solitaire.c</file>
--- a/demos/gtk-demo/demoimage.c
+++ b/demos/gtk-demo/demoimage.c
@@ -100,11 +100,7 @@ prepare_drag (GtkDragSource *source,
  DemoImage *demo = DEMO_IMAGE (widget);
  GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (demo->image));

-  /* Textures can be serialized, paintables can't, so special case the textures */
-  if (GDK_IS_TEXTURE (paintable))
-    return gdk_content_provider_new_typed (GDK_TYPE_TEXTURE, paintable);
-  else
-    return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
+  return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
 }

 static gboolean
@@ -133,11 +129,7 @@ copy_image (GtkWidget *widget,
  GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (demo->image));
  GValue value = G_VALUE_INIT;

-  /* Textures can be serialized, paintables can't, so special case the textures */
-  if (GDK_IS_TEXTURE (paintable))
-    g_value_init (&value, GDK_TYPE_TEXTURE);
-  else
-    g_value_init (&value, GDK_TYPE_PAINTABLE);
+  g_value_init (&value, GDK_TYPE_PAINTABLE);
  g_value_set_object (&value, paintable);
  gdk_clipboard_set_value (clipboard, &value);
  g_value_unset (&value);
@@ -146,46 +138,24 @@ copy_image (GtkWidget *widget,
    g_object_unref (paintable);
 }

-static void
-paste_image_cb (GObject      *source,
-                GAsyncResult *result,
-                gpointer      data)
-{
-  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
-  DemoImage *demo = DEMO_IMAGE (data);
-  const GValue *value;
-
-  value = gdk_clipboard_read_value_finish (clipboard, result, NULL);
-  if (value == NULL)
-    {
-      gtk_widget_error_bell (GTK_WIDGET (demo));
-      g_object_unref (demo);
-      return;
-    }
-
-  gtk_image_set_from_paintable (GTK_IMAGE (demo->image), g_value_get_object (value));
-  g_object_unref (demo);
-}
-
 static void
 paste_image (GtkWidget *widget,
             const char *action_name,
             GVariant *parameter)
 {
  GdkClipboard *clipboard = gtk_widget_get_clipboard (widget);
-  GType type;
+  DemoImage *demo = DEMO_IMAGE (widget);
+  GdkContentProvider *content = gdk_clipboard_get_content (clipboard);
+  GValue value = G_VALUE_INIT;
+  GdkPaintable *paintable;

-  if (gdk_content_formats_contain_gtype (gdk_clipboard_get_formats (clipboard), GDK_TYPE_TEXTURE))
-    type = GDK_TYPE_TEXTURE;
-  else
-    type = GDK_TYPE_PAINTABLE;
+  g_value_init (&value, GDK_TYPE_PAINTABLE);
+  if (!gdk_content_provider_get_value (content, &value, NULL))
+    return;

-  gdk_clipboard_read_value_async (clipboard, 
-                                  type,
-                                  G_PRIORITY_DEFAULT,
-                                  NULL,
-                                  paste_image_cb,
-                                  g_object_ref (widget));
+  paintable = GDK_PAINTABLE (g_value_get_object (&value));
+  gtk_image_set_from_paintable (GTK_IMAGE (demo->image), paintable);
+  g_value_unset (&value);
 }

 static void
--- a/demos/gtk-demo/fishbowl.c
+++ b/demos/gtk-demo/fishbowl.c
@@ -119,12 +119,13 @@ create_label (void)
 static GtkWidget *
 create_video (void)
 {
-  GtkWidget *w = gtk_video_new ();
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_picture_new_for_paintable (GDK_PAINTABLE (stream));

  gtk_widget_set_size_request (w, 64, 64);
-  gtk_video_set_loop (GTK_VIDEO (w), TRUE);
-  gtk_video_set_autoplay (GTK_VIDEO (w), TRUE);
-  gtk_video_set_resource (GTK_VIDEO (w), "/images/gtk-logo.webm");
+  gtk_media_stream_set_loop (stream, TRUE);
+  gtk_media_stream_play (stream);
+  g_object_unref (stream);

  return w;
 }
--- a/demos/gtk-demo/fishbowl.ui
+++ b/demos/gtk-demo/fishbowl.ui
@@ -13,13 +13,13 @@
            </style>
            <child>
              <object class="GtkButton">
-                <property name="icon-name">go-previous-symbolic</property>
+                <property name="icon-name">pan-start-symbolic</property>
                <signal name="clicked" handler="fishbowl_prev_button_clicked_cb" object="bowl" swapped="no"/>
              </object>
            </child>
            <child>
              <object class="GtkButton">
-                <property name="icon-name">go-next-symbolic</property>
+                <property name="icon-name">pan-end-symbolic</property>
                <signal name="clicked" handler="fishbowl_next_button_clicked_cb" object="bowl" swapped="no"/>
              </object>
            </child>
--- a/demos/gtk-demo/font-features.ui
+++ b/demos/gtk-demo/font-features.ui
@@ -10,8 +10,12 @@
          <object class="GtkButton" id="reset">
            <property name="receives-default">1</property>
            <property name="tooltip-text">Reset</property>
-            <property name="icon-name">view-refresh-symbolic</property>
            <signal name="clicked" handler="font_features_reset_features" swapped="no"/>
+            <child>
+              <object class="GtkImage">
+                <property name="icon-name">view-refresh-symbolic</property>
+              </object>
+            </child>
          </object>
        </child>
      </object>
--- a/demos/gtk-demo/font_features.c
+++ b/demos/gtk-demo/font_features.c
@@ -12,6 +12,7 @@
 */

 #include <gtk/gtk.h>
+#include <pango/pangofc-font.h>
 #include <hb.h>
 #include <hb-ot.h>
 #include <glib/gi18n.h>
@@ -1135,7 +1136,7 @@ done:
  g_free (design_coords);
 }

-G_MODULE_EXPORT void
+void
 font_features_font_changed (void)
 {
  update_script_combo ();
@@ -1143,14 +1144,14 @@ font_features_font_changed (void)
  update_font_variations ();
 }

-G_MODULE_EXPORT void
+void
 font_features_script_changed (void)
 {
  update_features ();
  update_display ();
 }

-G_MODULE_EXPORT void
+void
 font_features_reset_features (void)
 {
  GList *l;
@@ -1196,7 +1197,7 @@ switch_to_label (void)
  update_display ();
 }

-G_MODULE_EXPORT void
+void
 font_features_toggle_edit (void)
 {
  if (strcmp (gtk_stack_get_visible_child_name (GTK_STACK (stack)), "label") == 0)
@@ -1205,7 +1206,7 @@ font_features_toggle_edit (void)
    switch_to_label ();
 }

-G_MODULE_EXPORT void
+void
 font_features_stop_edit (void)
 {
  g_signal_emit_by_name (edit_toggle, "clicked");
--- a/demos/gtk-demo/fontify.c
+++ b/demos/gtk-demo/fontify.c
@@ -131,19 +131,6 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
    }

-#define VOID_ATTR(attr_name) \
-    { \
-      tag = gtk_text_tag_table_lookup (table, #attr_name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (#attr_name); \
-          g_object_set (tag, #attr_name, TRUE, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
  fg_alpha = bg_alpha = 1.;

  attrs = pango_attr_iterator_get_attrs (iter);
@@ -268,29 +255,6 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
          INT_ATTR (insert_hyphens);
          break;

-        case PANGO_ATTR_LINE_HEIGHT:
-          FLOAT_ATTR (line_height);
-          break;
-
-        case PANGO_ATTR_ABSOLUTE_LINE_HEIGHT:
-          break;
-
-        case PANGO_ATTR_WORD:
-          VOID_ATTR (word);
-          break;
-
-        case PANGO_ATTR_SENTENCE:
-          VOID_ATTR (sentence);
-          break;
-
-        case PANGO_ATTR_BASELINE_SHIFT:
-          INT_ATTR (baseline_shift);
-          break;
-
-        case PANGO_ATTR_FONT_SCALE:
-          INT_ATTR (font_scale);
-          break;
-
        case PANGO_ATTR_SHAPE:
        case PANGO_ATTR_ABSOLUTE_SIZE:
        case PANGO_ATTR_GRAVITY:
@@ -299,10 +263,6 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
        case PANGO_ATTR_BACKGROUND_ALPHA:
          break;

-        case PANGO_ATTR_TEXT_TRANSFORM:
-          INT_ATTR (text_transform);
-          break;
-
        case PANGO_ATTR_INVALID:
        default:
          g_assert_not_reached ();
--- a/demos/gtk-demo/fontrendering.c
+++ b/demos/gtk-demo/fontrendering.c
@@ -1,11 +1,6 @@
 /* Pango/Font Rendering
 *
- * Demonstrates various aspects of font rendering,
- * such as hinting, antialiasing and grid alignment.
- *
- * The demo lets you explore font rendering options
- * interactively to get a feeling for they affect the
- * shape and positioning of the glyphs.
+ * Demonstrates various aspects of font rendering.
 */

 #include <gtk/gtk.h>
@@ -15,21 +10,16 @@ static GtkWidget *font_button = NULL;
 static GtkWidget *entry = NULL;
 static GtkWidget *image = NULL;
 static GtkWidget *hinting = NULL;
-static GtkWidget *anti_alias = NULL;
 static GtkWidget *hint_metrics = NULL;
 static GtkWidget *up_button = NULL;
 static GtkWidget *down_button = NULL;
 static GtkWidget *text_radio = NULL;
 static GtkWidget *show_grid = NULL;
 static GtkWidget *show_extents = NULL;
-static GtkWidget *show_pixels = NULL;
-static GtkWidget *show_outlines = NULL;

 static PangoContext *context;

-static int scale = 7;
-static double pixel_alpha = 1.0;
-static double outline_alpha = 0.0;
+static int scale = 9;

 static void
 update_image (void)
@@ -37,7 +27,7 @@ update_image (void)
  const char *text;
  PangoFontDescription *desc;
  PangoLayout *layout;
-  PangoRectangle ink, logical;
+  PangoRectangle ink, pink, logical;
  int baseline;
  cairo_surface_t *surface;
  cairo_t *cr;
@@ -47,8 +37,6 @@ update_image (void)
  cairo_font_options_t *fopt;
  cairo_hint_style_t hintstyle;
  cairo_hint_metrics_t hintmetrics;
-  cairo_antialias_t antialias;
-  cairo_path_t *path;

  if (!context)
    context = gtk_widget_create_pango_context (image);
@@ -59,18 +47,16 @@ update_image (void)
  fopt = cairo_font_options_copy (pango_cairo_context_get_font_options (context));

  hint = gtk_combo_box_get_active_id (GTK_COMBO_BOX (hinting));
-  hintstyle = CAIRO_HINT_STYLE_DEFAULT;
-  if (hint)
-    {
-      if (strcmp (hint, "none") == 0)
-        hintstyle = CAIRO_HINT_STYLE_NONE;
-      else if (strcmp (hint, "slight") == 0)
-        hintstyle = CAIRO_HINT_STYLE_SLIGHT;
-      else if (strcmp (hint, "medium") == 0)
-        hintstyle = CAIRO_HINT_STYLE_MEDIUM;
-      else if (strcmp (hint, "full") == 0)
-        hintstyle = CAIRO_HINT_STYLE_FULL;
-    }
+  if (strcmp (hint, "none") == 0)
+    hintstyle = CAIRO_HINT_STYLE_NONE;
+  else if (strcmp (hint, "slight") == 0)
+    hintstyle = CAIRO_HINT_STYLE_SLIGHT;
+  else if (strcmp (hint, "medium") == 0)
+    hintstyle = CAIRO_HINT_STYLE_MEDIUM;
+  else if (strcmp (hint, "full") == 0)
+    hintstyle = CAIRO_HINT_STYLE_FULL;
+  else
+    hintstyle = CAIRO_HINT_STYLE_DEFAULT;
  cairo_font_options_set_hint_style (fopt, hintstyle);

  if (gtk_check_button_get_active (GTK_CHECK_BUTTON (hint_metrics)))
@@ -79,13 +65,6 @@ update_image (void)
    hintmetrics = CAIRO_HINT_METRICS_OFF;
  cairo_font_options_set_hint_metrics (fopt, hintmetrics);

-  if (gtk_check_button_get_active (GTK_CHECK_BUTTON (anti_alias)))
-    antialias = CAIRO_ANTIALIAS_GRAY;
-  else
-    antialias = CAIRO_ANTIALIAS_NONE;
-  cairo_font_options_set_antialias (fopt, antialias);
-
-  pango_context_set_round_glyph_positions (context, hintmetrics == CAIRO_HINT_METRICS_ON);
  pango_cairo_context_set_font_options (context, fopt);
  cairo_font_options_destroy (fopt);
  pango_context_changed (context);
@@ -96,6 +75,7 @@ update_image (void)
      pango_layout_set_font_description (layout, desc);
      pango_layout_set_text (layout, text, -1);
      pango_layout_get_extents (layout, &ink, &logical);
+      pink = ink;
      baseline = pango_layout_get_baseline (layout);

      pango_extents_to_pixels (&ink, NULL);
@@ -105,14 +85,10 @@ update_image (void)
      cairo_set_source_rgb (cr, 1, 1, 1);
      cairo_paint (cr);

-      cairo_set_source_rgba (cr, 0, 0, 0, pixel_alpha);
-
+      cairo_set_source_rgb (cr, 0, 0, 0);
      cairo_move_to (cr, 10, 10);
      pango_cairo_show_layout (cr, layout);

-      pango_cairo_layout_path (cr, layout);
-      path = cairo_copy_path (cr);
-
      cairo_destroy (cr);
      g_object_unref (layout);

@@ -151,7 +127,7 @@ update_image (void)

      if (gtk_check_button_get_active (GTK_CHECK_BUTTON (show_extents)))
        {
-          cairo_set_source_rgb (cr, 0, 0, 1);
+          cairo_set_source_rgba (cr, 0, 0, 1, 1);

          cairo_rectangle (cr,
                           scale * (10 + pango_units_to_double (logical.x)) - 0.5,
@@ -164,45 +140,17 @@ update_image (void)
          cairo_line_to (cr, scale * (10 + pango_units_to_double (logical.x + logical.width)) + 1,
                             scale * (10 + pango_units_to_double (baseline)) - 0.5);
          cairo_stroke (cr);
-          cairo_set_source_rgb (cr, 1, 0, 0);
+          cairo_set_source_rgba (cr, 1, 0, 0, 1);
          cairo_rectangle (cr,
-                           scale * (10 + ink.x) - 0.5,
-                           scale * (10 + ink.y) - 0.5,
-                           scale * ink.width + 1,
-                           scale * ink.height + 1);
+                           scale * (10 + pango_units_to_double (pink.x)) + 0.5,
+                           scale * (10 + pango_units_to_double (pink.y)) + 0.5,
+                           scale * pango_units_to_double (pink.width) - 1,
+                           scale * pango_units_to_double (pink.height) - 1);
          cairo_stroke (cr);
        }

-      for (int i = 0; i < path->num_data; i += path->data[i].header.length)
-        {
-          cairo_path_data_t *data = &path->data[i];
-          switch (data->header.type)
-            {
-            case CAIRO_PATH_CURVE_TO:
-              data[3].point.x *= scale; data[3].point.y *= scale;
-              data[2].point.x *= scale; data[2].point.y *= scale;
-              data[1].point.x *= scale; data[1].point.y *= scale;
-              break;
-            case CAIRO_PATH_LINE_TO:
-            case CAIRO_PATH_MOVE_TO:
-              data[1].point.x *= scale; data[1].point.y *= scale;
-              break;
-            case CAIRO_PATH_CLOSE_PATH:
-              break;
-            default:
-              g_assert_not_reached ();
-            }
-        }
-
-      cairo_set_source_rgba (cr, 0, 0, 0, outline_alpha);
-      cairo_move_to (cr, scale * 20 - 0.5, scale * 20 - 0.5);
-      cairo_append_path (cr, path);
-      cairo_stroke (cr);
-
      cairo_surface_destroy (surface);
      cairo_destroy (cr);
-
-      cairo_path_destroy (path);
    }
  else
    {
@@ -210,26 +158,10 @@ update_image (void)
      PangoLayoutRun *run;
      PangoGlyphInfo *g;
      int i, j;
-      GString *str;
-      gunichar ch;
-
-      if (*text == '\0')
-        text = " ";
-
-      ch = g_utf8_get_char (text);
-
-      str = g_string_new ("");
-
-      for (i = 0; i < 4; i++)
-        {
-          g_string_append_unichar (str, ch);
-          g_string_append_unichar (str, 0x200c);
-        }

      layout = pango_layout_new (context);
      pango_layout_set_font_description (layout, desc);
-      pango_layout_set_text (layout, str->str, -1);
-      g_string_free (str, TRUE);
+      pango_layout_set_text (layout, "aaaa", -1);
      pango_layout_get_extents (layout, &ink, &logical);
      pango_extents_to_pixels (&logical, NULL);

@@ -244,7 +176,7 @@ update_image (void)
      cairo_set_source_rgb (cr, 0, 0, 0);
      for (i = 0; i < 4; i++)
        {
-          g = &(run->glyphs->glyphs[2*i]);
+          g = &(run->glyphs->glyphs[i]);
          g->geometry.width = PANGO_UNITS_ROUND (g->geometry.width * 3 / 2);
        }

@@ -252,7 +184,7 @@ update_image (void)
        {
          for (i = 0; i < 4; i++)
            {
-              g = &(run->glyphs->glyphs[2*i]);
+              g = &(run->glyphs->glyphs[i]);
              g->geometry.x_offset = i * (PANGO_SCALE / 4);
              g->geometry.y_offset = j * (PANGO_SCALE / 4);
            }
@@ -271,6 +203,7 @@ update_image (void)
      cairo_surface_destroy (surface);
    }

+
  gtk_picture_set_pixbuf (GTK_PICTURE (image), pixbuf2);

  g_object_unref (pixbuf2);
@@ -278,78 +211,6 @@ update_image (void)
  pango_font_description_free (desc);
 }

-static gboolean fading = FALSE;
-static double start_pixel_alpha;
-static double end_pixel_alpha;
-static double start_outline_alpha;
-static double end_outline_alpha;
-static gint64 start_time;
-static gint64 end_time;
-
-static double
-ease_out_cubic (double t)
-{
-  double p = t - 1;
-  return p * p * p + 1;
-}
-
-static gboolean
-change_alpha (GtkWidget     *widget,
-              GdkFrameClock *clock,
-              gpointer       user_data)
-{
-  gint64 now = g_get_monotonic_time ();
-  double t;
-
-  t = ease_out_cubic ((now - start_time) / (double) (end_time - start_time));
-
-  pixel_alpha = start_pixel_alpha + (end_pixel_alpha - start_pixel_alpha) * t;
-  outline_alpha = start_outline_alpha + (end_outline_alpha - start_outline_alpha) * t;
-
-  update_image ();
-
-  if (now >= end_time)
-    {
-      fading = FALSE;
-      return G_SOURCE_REMOVE;
-    }
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-start_alpha_fade (void)
-{
-  gboolean pixels;
-  gboolean outlines;
-
-  if (fading)
-    return;
-
-  pixels = gtk_check_button_get_active (GTK_CHECK_BUTTON (show_pixels));
-  outlines = gtk_check_button_get_active (GTK_CHECK_BUTTON (show_outlines));
-
-  start_pixel_alpha = pixel_alpha;
-  if (pixels && outlines)
-    end_pixel_alpha = 0.5;
-  else if (pixels)
-    end_pixel_alpha = 1;
-  else
-    end_pixel_alpha = 0;
-
-  start_outline_alpha = outline_alpha;
-  if (outlines)
-    end_outline_alpha = 1.0;
-  else
-    end_outline_alpha = 0.0;
-
-  start_time = g_get_monotonic_time ();
-  end_time = start_time + G_TIME_SPAN_SECOND / 2;
-
-  fading = TRUE;
-  gtk_widget_add_tick_callback (window, change_alpha, NULL, NULL);
-}
-
 static void
 update_buttons (void)
 {
@@ -357,26 +218,20 @@ update_buttons (void)
  gtk_widget_set_sensitive (down_button, scale > 1);
 }

-static gboolean
-scale_up (GtkWidget *widget,
-          GVariant  *args,
-          gpointer   user_data)
+static void
+scale_up (void)
 {
  scale += 1;
  update_buttons ();
  update_image ();
-  return TRUE;
 }

-static gboolean
-scale_down (GtkWidget *widget,
-            GVariant  *args,
-            gpointer   user_data)
+static void
+scale_down (void)
 {
  scale -= 1;
  update_buttons ();
  update_image ();
-  return TRUE;
 }

 GtkWidget *
@@ -397,26 +252,20 @@ do_fontrendering (GtkWidget *do_widget)
      entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
      image = GTK_WIDGET (gtk_builder_get_object (builder, "image"));
      hinting = GTK_WIDGET (gtk_builder_get_object (builder, "hinting"));
-      anti_alias = GTK_WIDGET (gtk_builder_get_object (builder, "antialias"));
      hint_metrics = GTK_WIDGET (gtk_builder_get_object (builder, "hint_metrics"));
      text_radio = GTK_WIDGET (gtk_builder_get_object (builder, "text_radio"));
      show_grid = GTK_WIDGET (gtk_builder_get_object (builder, "show_grid"));
      show_extents = GTK_WIDGET (gtk_builder_get_object (builder, "show_extents"));
-      show_pixels = GTK_WIDGET (gtk_builder_get_object (builder, "show_pixels"));
-      show_outlines = GTK_WIDGET (gtk_builder_get_object (builder, "show_outlines"));

      g_signal_connect (up_button, "clicked", G_CALLBACK (scale_up), NULL);
      g_signal_connect (down_button, "clicked", G_CALLBACK (scale_down), NULL);
      g_signal_connect (entry, "notify::text", G_CALLBACK (update_image), NULL);
      g_signal_connect (font_button, "notify::font-desc", G_CALLBACK (update_image), NULL);
      g_signal_connect (hinting, "notify::active", G_CALLBACK (update_image), NULL);
-      g_signal_connect (anti_alias, "notify::active", G_CALLBACK (update_image), NULL);
      g_signal_connect (hint_metrics, "notify::active", G_CALLBACK (update_image), NULL);
      g_signal_connect (text_radio, "notify::active", G_CALLBACK (update_image), NULL);
      g_signal_connect (show_grid, "notify::active", G_CALLBACK (update_image), NULL);
      g_signal_connect (show_extents, "notify::active", G_CALLBACK (update_image), NULL);
-      g_signal_connect (show_pixels, "notify::active", G_CALLBACK (start_alpha_fade), NULL);
-      g_signal_connect (show_outlines, "notify::active", G_CALLBACK (start_alpha_fade), NULL);

      update_image ();

--- a/demos/gtk-demo/fontrendering.ui
+++ b/demos/gtk-demo/fontrendering.ui
@@ -1,8 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <object class="GtkAdjustment" id="scale_adj">
+    <property name="upper">24</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">4</property>
+  </object>
  <object class="GtkWindow" id="window">
-    <property name="default-width">1024</property>
-    <property name="default-height">768</property>
+    <property name="default-width">1080</property>
+    <property name="default-height">430</property>
    <child type="titlebar">
      <object class="GtkHeaderBar">
        <child type="title">
@@ -82,119 +87,69 @@
              </object>
            </child>
            <child>
-              <object class="GtkCheckButton" id="show_pixels">
-                <property name="label">Show _Pixels</property>
-                <property name="use-underline">1</property>
-                <property name="active">1</property>
+              <object class="GtkLabel">
+                <property name="label">Hinting</property>
+                <property name="xalign">1</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
                <layout>
                  <property name="column">3</property>
-                  <property name="row">0</property>
                </layout>
              </object>
            </child>
            <child>
-              <object class="GtkCheckButton" id="show_outlines">
-                <property name="label">Show _Outline</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">3</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkBox">
-                <property name="spacing">6</property>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label">_Hinting</property>
-                    <property name="use-underline">1</property>
-                    <property name="mnemonic-widget">hinting</property>
-                    <style>
-                      <class name="dim-label"/>
-                    </style>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkComboBoxText" id="hinting">
-                    <property name="active">0</property>
-                    <property name="valign">center</property>
-                    <items>
-                      <item translatable="yes" id="none">None</item>
-                      <item translatable="yes" id="slight">Slight</item>
-                      <item translatable="yes" id="medium">Medium</item>
-                      <item translatable="yes" id="full">Full</item>
-                    </items>
-                  </object>
-                </child>
+              <object class="GtkComboBoxText" id="hinting">
+                <property name="active">0</property>
+                <property name="valign">center</property>
+                <items>
+                  <item translatable="yes" id="none">None</item>
+                  <item translatable="yes" id="slight">Slight</item>
+                  <item translatable="yes" id="medium">Medium</item>
+                  <item translatable="yes" id="full">Full</item>
+                </items>
                <layout>
                  <property name="column">4</property>
-                  <property name="column-span">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkCheckButton" id="antialias">
-                <property name="label">_Antialias</property>
-                <property name="use-underline">1</property>
-                <property name="active">1</property>
-                <layout>
-                  <property name="column">4</property>
-                  <property name="row">1</property>
                </layout>
              </object>
            </child>
            <child>
              <object class="GtkCheckButton" id="hint_metrics">
-                <property name="label">Hint _Metrics</property>
-                <property name="use-underline">1</property>
+                <property name="label">Hint Metrics</property>
+                <layout>
+                  <property name="column">4</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkCheckButton" id="show_extents">
+                <property name="label">Show Extents</property>
+                <property name="active">1</property>
+                <layout>
+                  <property name="column">5</property>
+                  <property name="row">0</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkCheckButton" id="show_grid">
+                <property name="active">1</property>
+                <property name="label">Show Grid</property>
                <layout>
                  <property name="column">5</property>
                  <property name="row">1</property>
                </layout>
              </object>
            </child>
-            <child>
-              <object class="GtkCheckButton" id="show_extents">
-                <property name="label">Show _Extents</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">6</property>
-                  <property name="row">0</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkCheckButton" id="show_grid">
-                <property name="label">Show _Grid</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">6</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
            <child>
              <object class="GtkButton" id="up_button">
                <property name="icon-name">list-add-symbolic</property>
-                <property name="halign">center</property>
-                <property name="valign">center</property>
                <style>
                  <class name="circular"/>
                </style>
-                <child>
-                  <object class="GtkShortcutController">
-                    <property name="scope">managed</property>
-                    <child>
-                      <object class="GtkShortcut">
-                        <property name="trigger">&lt;Control&gt;plus</property>
-                        <property name="action">activate</property>
-                      </object>
-                    </child>
-                  </object>
-                </child>
                <layout>
-                  <property name="column">7</property>
+                  <property name="column">6</property>
                  <property name="row">0</property>
                </layout>
              </object>
@@ -202,24 +157,11 @@
            <child>
              <object class="GtkButton" id="down_button">
                <property name="icon-name">list-remove-symbolic</property>
-                <property name="halign">center</property>
-                <property name="valign">center</property>
                <style>
                  <class name="circular"/>
                </style>
-                <child>
-                  <object class="GtkShortcutController">
-                    <property name="scope">managed</property>
-                    <child>
-                      <object class="GtkShortcut">
-                        <property name="trigger">&lt;Control&gt;minus</property>
-                        <property name="action">activate</property>
-                      </object>
-                    </child>
-                  </object>
-                </child>
                <layout>
-                  <property name="column">7</property>
+                  <property name="column">6</property>
                  <property name="row">1</property>
                </layout>
              </object>
@@ -228,7 +170,7 @@
              <object class="GtkLabel">
                <property name="hexpand">1</property>
                <layout>
-                  <property name="column">8</property>
+                  <property name="column">7</property>
                </layout>
              </object>
            </child>
--- a/demos/gtk-demo/frames.c
+++ b/demos/gtk-demo/frames.c
@@ -1,165 +0,0 @@
-/* Benchmark/Frames
- *
- * This demo is intentionally as simple as possible, to see what
- * framerate the windowing system can deliver on its own.
- *
- * It does nothing but change the drawn color, for every frame.
- */
-
-#include <gtk/gtk.h>
-
-typedef struct
-{
-  GtkWidget parent_instance;
-
-  GdkRGBA color1;
-  GdkRGBA color2;
-  guint64 time2;
-  float t;
-
-  guint tick_cb;
-} ColorWidget;
-
-typedef struct
-{
-  GtkWidgetClass parent_class;
-} ColorWidgetClass;
-
-G_DEFINE_TYPE (ColorWidget, color_widget, GTK_TYPE_WIDGET)
-
-#define TIME_SPAN (3.0 * G_TIME_SPAN_SECOND)
-
-static gboolean
-change_color (GtkWidget     *widget,
-              GdkFrameClock *frame_clock,
-              gpointer       data)
-{
-  ColorWidget *color = (ColorWidget *)widget;
-  gint64 time;
-
-  time = gdk_frame_clock_get_frame_time (frame_clock);
-
-  if (time >= color->time2)
-    {
-      color->time2 = time + TIME_SPAN;
-
-      color->color1 = color->color2;
-      color->color2.red = g_random_double_range (0, 1);
-      color->color2.green = g_random_double_range (0, 1);
-      color->color2.blue = g_random_double_range (0, 1);
-      color->color2.alpha = 1;
-    }
-
-  color->t = 1 - (color->time2 - time) / TIME_SPAN;
-
-  gtk_widget_queue_draw (widget);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-color_widget_snapshot (GtkWidget   *widget,
-                       GtkSnapshot *snapshot)
-{
-  ColorWidget *color = (ColorWidget *)widget;
-  float w, h;
-  GdkRGBA c;
-
-  w = gtk_widget_get_width (widget);
-  h = gtk_widget_get_height (widget);
-
-  c.red = (1 - color->t) * color->color1.red + color->t * color->color2.red;
-  c.green = (1 - color->t) * color->color1.green + color->t * color->color2.green;
-  c.blue = (1 - color->t) * color->color1.blue + color->t * color->color2.blue;
-  c.alpha = 1;
-
-  gtk_snapshot_append_color (snapshot, &c, &GRAPHENE_RECT_INIT (0, 0, w, h));
-}
-
-static void
-color_widget_init (ColorWidget *color)
-{
-  gtk_widget_add_tick_callback (GTK_WIDGET (color), change_color, NULL, NULL);
-  gtk_widget_set_hexpand (GTK_WIDGET (color), TRUE);
-  gtk_widget_set_vexpand (GTK_WIDGET (color), TRUE);
-}
-
-static void
-color_widget_class_init (ColorWidgetClass *class)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  widget_class->snapshot = color_widget_snapshot;
-}
-
-GtkWidget *
-color_widget_new (void)
-{
-  return g_object_new (color_widget_get_type (), NULL);
-}
-
-static gboolean
-update_fps_label (gpointer data)
-{
-  GtkWidget *label = GTK_WIDGET (data);
-  GdkFrameClock *frame_clock;
-
-  frame_clock = gtk_widget_get_frame_clock (label);
-
-  if (frame_clock)
-    {
-      char *fps;
-
-      fps = g_strdup_printf ("%.2f fps", gdk_frame_clock_get_fps (frame_clock));
-      gtk_label_set_label (GTK_LABEL (label), fps);
-      g_free (fps);
-    }
-  else
-    gtk_label_set_label (GTK_LABEL (label), "");
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-remove_id (gpointer data)
-{
-  guint id = GPOINTER_TO_UINT (data);
-
-  g_source_remove (id);
-}
-
-GtkWidget *
-do_frames (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkBuilder *builder;
-      GtkWidget *box;
-      GtkWidget *label;
-      guint id;
-
-      builder = gtk_builder_new_from_resource ("/frames/frames.ui");
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-
-      label = GTK_WIDGET (gtk_builder_get_object (builder, "fps"));
-      box = GTK_WIDGET (gtk_builder_get_object (builder, "box"));
-
-      gtk_box_append (GTK_BOX (box), color_widget_new ());
-
-      id = g_timeout_add (500, update_fps_label, label);
-      g_object_set_data_full (G_OBJECT (label), "tick_cb",
-                              GUINT_TO_POINTER (id), remove_id);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}
--- a/demos/gtk-demo/frames.ui
+++ b/demos/gtk-demo/frames.ui
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="resizable">1</property>
-    <property name="default-width">600</property>
-    <property name="default-height">400</property>
-    <property name="title">Frames</property>
-    <child type="titlebar">
-      <object class="GtkHeaderBar" id="header">
-        <child type="end">
-          <object class="GtkLabel" id="fps">
-            <attributes>
-              <attribute name="font-features" value="tnum=1"/>
-            </attributes>
-          </object>
-        </child>
-      </object>
-    </child>
-    <child>
-      <object class="GtkBox" id="box">
-      </object>
-    </child>
-  </object>
-</interface>
--- a/demos/gtk-demo/gskshaderpaintable.c
+++ b/demos/gtk-demo/gskshaderpaintable.c
@@ -23,10 +23,13 @@
 #include "gskshaderpaintable.h"

 /**
- * GskShaderPaintable:
+ * SECTION:gskshaderpaintable
+ * @Short_description: Drawing with shaders
+ * @Title: GskShaderPaintable
+ * @see_also: #GdkPaintable
 *
- * `GskShaderPaintable` is an implementation of the `GdkPaintable` interface
- * that uses a `GskGLShader` to create pixels.
+ * GskShaderPaintable is an implementation of the #GdkPaintable interface
+ * that uses a #GskGLShader to create pixels.
 *
 * You can set the uniform data that the shader needs for rendering
 * using gsk_shader_paintable_set_args(). This function can
@@ -35,7 +38,7 @@
 *
 * Commonly, time is passed to shaders as a float uniform containing
 * the elapsed time in seconds. The convenience API
- * gsk_shader_paintable_update_time() can be called from a `GtkTickCallback`
+ * gsk_shader_paintable_update_time() can be called from a #GtkTickCallback
 * to update the time based on the frame time of the frame clock.
 */

@@ -183,7 +186,7 @@ gsk_shader_paintable_init (GskShaderPaintable *self)
 * pixels. The shader must not require input textures.
 * If @data is %NULL, all uniform values are set to zero.
 *
- * Returns: (transfer full): a new `GskShaderPaintable`
+ * Returns: (transfer full): a new #GskShaderPaintable
 */
 GdkPaintable *
 gsk_shader_paintable_new (GskGLShader *shader,
@@ -212,8 +215,8 @@ gsk_shader_paintable_new (GskGLShader *shader,

 /**
 * gsk_shader_paintable_set_shader:
- * @self: a `GskShaderPaintable`
- * @shader: the `GskGLShader` to use
+ * @self: a #GskShaderPaintable
+ * @shader: the #GskGLShader to use
 *
 * Sets the shader that the paintable will use
 * to create pixels. The shader must not require
@@ -238,11 +241,11 @@ gsk_shader_paintable_set_shader (GskShaderPaintable *self,

 /**
 * gsk_shader_paintable_get_shader:
- * @self: a `GskShaderPaintable`
+ * @self: a #GskShaderPaintable
 *
 * Returns the shader that the paintable is using.
 *
- * Returns: (transfer none): the `GskGLShader` that is used
+ * Returns: (transfer none): the #GskGLShader that is used
 */
 GskGLShader *
 gsk_shader_paintable_get_shader (GskShaderPaintable *self)
@@ -254,12 +257,12 @@ gsk_shader_paintable_get_shader (GskShaderPaintable *self)

 /**
 * gsk_shader_paintable_set_args:
- * @self: a `GskShaderPaintable`
+ * @self: a #GskShaderPaintable
 * @data: Data block with uniform data for the shader
 *
 * Sets the uniform data that will be passed to the
 * shader when rendering. The @data will typically
- * be produced by a `GskUniformDataBuilder`.
+ * be produced by a #GskUniformDataBuilder.
 *
 * Note that the @data should be considered immutable
 * after it has been passed to this function.
@@ -281,7 +284,7 @@ gsk_shader_paintable_set_args (GskShaderPaintable *self,

 /**
 * gsk_shader_paintable_get_args:
- * @self: a `GskShaderPaintable`
+ * @self: a #GskShaderPaintable
 *
 * Returns the uniform data set with
 * gsk_shader_paintable_get_args().
@@ -298,9 +301,9 @@ gsk_shader_paintable_get_args (GskShaderPaintable *self)

 /**
 * gsk_shader_paintable_update_time:
- * @self: a `GskShaderPaintable`
+ * @self: a #GskShaderPaintable
 * @time_idx: the index of the uniform for time in seconds as float
- * @frame_time: the current frame time, as returned by `GdkFrameClock`
+ * @frame_time: the current frame time, as returned by #GdkFrameClock
 *
 * This function is a convenience wrapper for
 * gsk_shader_paintable_set_args() that leaves all
@@ -308,7 +311,7 @@ gsk_shader_paintable_get_args (GskShaderPaintable *self)
 * index @time_idx, which will be set to the elapsed time
 * in seconds, since the first call to this function.
 *
- * This function is usually called from a `GtkTickCallback`.
+ * This function is usually called from a #GtkTickCallback.
 */
 void
 gsk_shader_paintable_update_time (GskShaderPaintable *self,
--- a/demos/gtk-demo/gtkfishbowl.c
+++ b/demos/gtk-demo/gtkfishbowl.c
@@ -74,9 +74,9 @@ gtk_fishbowl_init (GtkFishbowl *fishbowl)
 /**
 * gtk_fishbowl_new:
 *
- * Creates a new `GtkFishbowl`.
+ * Creates a new #GtkFishbowl.
 *
- * Returns: a new `GtkFishbowl`.
+ * Returns: a new #GtkFishbowl.
 */
 GtkWidget*
 gtk_fishbowl_new (void)
--- a/demos/gtk-demo/gtkgears.c
+++ b/demos/gtk-demo/gtkgears.c
@@ -787,8 +787,6 @@ gtk_gears_realize (GtkWidget *widget)
  glLinkProgram(program);
  glGetProgramInfoLog(program, sizeof msg, NULL, msg);
  g_debug ("program info: %s\n", msg);
-  glDetachShader (program, v);
-  glDetachShader (program, f);
  glDeleteShader (v);
  glDeleteShader (f);

@@ -874,8 +872,8 @@ gtk_gears_tick (GtkWidget     *widget,
 {
  GtkGears *gears = GTK_GEARS (widget);
  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
-  GdkFrameTimings *previous_timings;
-  gint64 previous_frame_time;
+  GdkFrameTimings *timings, *previous_timings;
+  gint64 previous_frame_time = 0;
  gint64 frame_time;
  gint64 history_start, history_len;
  gint64 frame;
@@ -915,6 +913,12 @@ gtk_gears_tick (GtkWidget     *widget,
        }
    }

+  timings = gdk_frame_clock_get_current_timings (frame_clock);
+  previous_timings = gdk_frame_clock_get_timings (frame_clock,
+                                                  gdk_frame_timings_get_frame_counter (timings) - 1);
+  if (previous_timings != NULL)
+    previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
  return G_SOURCE_CONTINUE;
 }

--- a/demos/gtk-demo/gtkshadertoy.c
+++ b/demos/gtk-demo/gtkshadertoy.c
@@ -163,8 +163,8 @@ drag_update_cb (GtkGestureDrag *drag,

 static void
 drag_end_cb (GtkGestureDrag *drag,
-             double          dx,
-             double          dy,
+             gdouble         dx,
+             gdouble         dy,
             gpointer        user_data)
 {
  GtkShadertoy *shadertoy = GTK_SHADERTOY (user_data);
--- a/demos/gtk-demo/headerbar.c
+++ b/demos/gtk-demo/headerbar.c
@@ -18,6 +18,8 @@ do_headerbar (GtkWidget *do_widget)
  GtkWidget *header;
  GtkWidget *button;
  GtkWidget *box;
+  GtkWidget *image;
+  GIcon *icon;

  if (!window)
    {
@@ -30,14 +32,20 @@ do_headerbar (GtkWidget *do_widget)

      header = gtk_header_bar_new ();

-      button = gtk_button_new_from_icon_name ("mail-send-receive-symbolic");
+      button = gtk_button_new ();
+      icon = g_themed_icon_new ("mail-send-receive-symbolic");
+      image = gtk_image_new_from_gicon (icon);
+      g_object_unref (icon);
+      gtk_button_set_child (GTK_BUTTON (button), image);
      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);

      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
      gtk_widget_add_css_class (box, "linked");
-      button = gtk_button_new_from_icon_name ("go-previous-symbolic");
+      button = gtk_button_new ();
+      gtk_button_set_child (GTK_BUTTON (button), gtk_image_new_from_icon_name ("pan-start-symbolic"));
      gtk_box_append (GTK_BOX (box), button);
-      button = gtk_button_new_from_icon_name ("go-next-symbolic");
+      button = gtk_button_new ();
+      gtk_button_set_child (GTK_BUTTON (button), gtk_image_new_from_icon_name ("pan-end-symbolic"));
      gtk_box_append (GTK_BOX (box), button);

      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), box);
--- a/demos/gtk-demo/hypertext.c
+++ b/demos/gtk-demo/hypertext.c
@@ -7,8 +7,7 @@
 * shows.
 *
 * We also demonstrate adding other things to a text view, such as
- * clickable icons and widgets which can also replace a character
- * (try copying the ghost text).
+ * clickable icons.
 */

 #include <gtk/gtk.h>
@@ -62,26 +61,12 @@ show_page (GtkTextView *text_view,
           int          page)
 {
  GtkTextBuffer *buffer;
-  GtkTextIter iter, start;
-  GtkTextMark *mark;
+  GtkTextIter iter;
  GtkWidget *child;
  GtkTextChildAnchor *anchor;
  GtkEventController *controller;
-  GtkTextTag *bold, *mono, *nobreaks;

  buffer = gtk_text_view_get_buffer (text_view);
-
-  bold = gtk_text_buffer_create_tag (buffer, NULL,
-                                     "weight", PANGO_WEIGHT_BOLD,
-                                     "scale", PANGO_SCALE_X_LARGE,
-                                     NULL);
-  mono = gtk_text_buffer_create_tag (buffer, NULL,
-                                     "family", "monospace",
-                                     NULL);
-  nobreaks = gtk_text_buffer_create_tag (buffer, NULL,
-                                         "allow-breaks", FALSE,
-                                         NULL);
-
  gtk_text_buffer_set_text (buffer, "", 0);
  gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
  gtk_text_buffer_begin_irreversible_action (buffer);
@@ -95,12 +80,13 @@ show_page (GtkTextView *text_view,
      gtk_text_buffer_insert (buffer, &iter, " can easily be realized with ", -1);
      insert_link (buffer, &iter, "tags", 2);
      gtk_text_buffer_insert (buffer, &iter, ".\n", -1);
-      gtk_text_buffer_insert (buffer, &iter, "Of course you can also embed Emoji 😋, ", -1);
-      gtk_text_buffer_insert (buffer, &iter, "icons ", -1);
+      gtk_text_buffer_insert (buffer, &iter,
+          "Of course you can also embed Emoji 😋, "
+          "icons ", -1);

      theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
      icon = gtk_icon_theme_lookup_icon (theme,
-                                         "view-conceal-symbolic",
+                                         "microphone-sensitivity-high-symbolic",
                                         NULL,
                                         16,
                                         1,
@@ -114,31 +100,21 @@ show_page (GtkTextView *text_view,
      gtk_level_bar_set_value (GTK_LEVEL_BAR (child), 50);
      gtk_widget_set_size_request (child, 100, -1);
      gtk_text_view_add_child_at_anchor (text_view, child, anchor);
-      gtk_text_buffer_insert (buffer, &iter, " and labels with ", -1);
-      anchor = gtk_text_child_anchor_new_with_replacement ("👻");
-      gtk_text_buffer_insert_child_anchor (buffer, &iter, anchor);
-      child = gtk_label_new ("ghost");
-      gtk_text_view_add_child_at_anchor (text_view, child, anchor);
-      gtk_text_buffer_insert (buffer, &iter, " text.", -1);
+      gtk_text_buffer_insert (buffer, &iter, ".", -1);
    }
  else if (page == 2)
    {
-      mark = gtk_text_buffer_create_mark (buffer, "mark", &iter, TRUE);
+      GtkTextTag *tag;

-      gtk_text_buffer_insert_with_tags (buffer, &iter, "tag", -1, bold, NULL);
-      gtk_text_buffer_insert (buffer, &iter, " /", -1);
-
-      gtk_text_buffer_get_iter_at_mark (buffer, &start, mark);
-      gtk_text_buffer_apply_tag (buffer, nobreaks, &start, &iter);
-      gtk_text_buffer_insert (buffer, &iter, " ", -1);
-
-      gtk_text_buffer_move_mark (buffer, mark, &iter);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, "tag", -1, mono, NULL);
-      gtk_text_buffer_insert (buffer, &iter, " /", -1);
-
-      gtk_text_buffer_get_iter_at_mark (buffer, &start, mark);
-      gtk_text_buffer_apply_tag (buffer, nobreaks, &start, &iter);
-      gtk_text_buffer_insert (buffer, &iter, " ", -1);
+      tag = gtk_text_buffer_create_tag (buffer, NULL,
+                                        "weight", PANGO_WEIGHT_BOLD,
+                                        "scale", PANGO_SCALE_X_LARGE,
+                                        NULL);
+      gtk_text_buffer_insert_with_tags (buffer, &iter, "tag", -1, tag, NULL);
+      tag = gtk_text_buffer_create_tag (buffer, NULL,
+                                        "family", "monospace",
+                                        NULL);
+      gtk_text_buffer_insert_with_tags (buffer, &iter, " / tag / ", -1, tag, NULL);

      anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
      child = gtk_image_new_from_icon_name ("audio-volume-high-symbolic");
@@ -156,26 +132,20 @@ show_page (GtkTextView *text_view,
          "behavior of mouse and key presses, “lock” a range of text so the "
          "user can't edit it, or countless other things.\n", -1);
      insert_link (buffer, &iter, "Go back", 1);
-
-      gtk_text_buffer_delete_mark (buffer, mark);
    }
  else if (page == 3)
    {
-      mark = gtk_text_buffer_create_mark (buffer, "mark", &iter, TRUE);
+      GtkTextTag *tag;

-      gtk_text_buffer_insert_with_tags (buffer, &iter, "hypertext", -1, bold, NULL);
-      gtk_text_buffer_insert (buffer, &iter, " /", -1);
-
-      gtk_text_buffer_get_iter_at_mark (buffer, &start, mark);
-      gtk_text_buffer_apply_tag (buffer, nobreaks, &start, &iter);
-      gtk_text_buffer_insert (buffer, &iter, " ", -1);
-
-      gtk_text_buffer_move_mark (buffer, mark, &iter);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, "ˈhaɪ pərˌtɛkst", -1, mono, NULL);
-      gtk_text_buffer_insert (buffer, &iter, " /", -1);
-      gtk_text_buffer_get_iter_at_mark (buffer, &start, mark);
-      gtk_text_buffer_apply_tag (buffer, nobreaks, &start, &iter);
-      gtk_text_buffer_insert (buffer, &iter, " ", -1);
+      tag = gtk_text_buffer_create_tag (buffer, NULL,
+                                        "weight", PANGO_WEIGHT_BOLD,
+                                        "scale", PANGO_SCALE_X_LARGE,
+                                        NULL);
+      gtk_text_buffer_insert_with_tags (buffer, &iter, "hypertext", -1, tag, NULL);
+      tag = gtk_text_buffer_create_tag (buffer, NULL,
+                                        "family", "monospace",
+                                        NULL);
+      gtk_text_buffer_insert_with_tags (buffer, &iter, " / ˈhaɪ pərˌtɛkst / ", -1, tag, NULL);

      anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
      child = gtk_image_new_from_icon_name ("audio-volume-high-symbolic");
@@ -189,8 +159,6 @@ show_page (GtkTextView *text_view,
          "Machine-readable text that is not sequential but is organized "
          "so that related items of information are connected.\n", -1);
      insert_link (buffer, &iter, "Go back", 1);
-
-      gtk_text_buffer_delete_mark (buffer, mark);
    }
  gtk_text_buffer_end_irreversible_action (buffer);
 }
@@ -390,7 +358,7 @@ do_hypertext (GtkWidget *do_widget)

      sw = gtk_scrolled_window_new ();
      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
-                                      GTK_POLICY_NEVER,
+                                      GTK_POLICY_AUTOMATIC,
                                      GTK_POLICY_AUTOMATIC);
      gtk_window_set_child (GTK_WINDOW (window), sw);
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view);
--- a/demos/gtk-demo/iconscroll.c
+++ b/demos/gtk-demo/iconscroll.c
@@ -13,7 +13,7 @@ static GtkWidget *window = NULL;
 static GtkWidget *scrolledwindow;
 static int selected;

-#define N_WIDGET_TYPES 8
+#define N_WIDGET_TYPES 7


 static int hincrement = 5;
@@ -110,46 +110,6 @@ populate_text (gboolean highlight)
  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), textview);
 }

-static void
-populate_emoji_text (void)
-{
-  GtkWidget *textview;
-  GtkTextBuffer *buffer;
-  GString *s;
-  GtkTextIter iter;
-
-  s = g_string_sized_new (500 * 30 * 4);
-
-  for (int i = 0; i < 500; i++)
-    {
-      if (i % 2)
-        g_string_append (s, "<span underline=\"single\" underline_color=\"red\">x</span>");
-      for (int j = 0; j < 30; j++)
-        {
-          g_string_append (s, "💓");
-          g_string_append (s, "<span underline=\"single\" underline_color=\"red\">x</span>");
-        }
-      g_string_append (s, "\n");
-    }
-
-  buffer = gtk_text_buffer_new (NULL);
-  gtk_text_buffer_get_start_iter (buffer, &iter);
-  gtk_text_buffer_insert_markup (buffer, &iter, s->str, s->len);
-
-  g_string_free (s, TRUE);
-
-  textview = gtk_text_view_new ();
-  gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
-
-  hincrement = 0;
-  vincrement = 5;
-
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
-                                  GTK_POLICY_NEVER,
-                                  GTK_POLICY_AUTOMATIC);
-  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), textview);
-}
-
 static void
 populate_image (void)
 {
@@ -264,26 +224,21 @@ set_widget_type (int type)
      break;

    case 3:
-      gtk_window_set_title (GTK_WINDOW (window), "Scrolling text with Emoji");
-      populate_emoji_text ();
-      break;
-
-    case 4:
      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a big image");
      populate_image ();
      break;

-    case 5:
+    case 4:
      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a list");
      populate_list ();
      break;

-    case 6:
+    case 5:
      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a columned list");
      populate_list2 ();
      break;

-    case 7:
+    case 6:
      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a grid");
      populate_grid ();
      break;
--- a/demos/gtk-demo/iconscroll.ui
+++ b/demos/gtk-demo/iconscroll.ui
@@ -13,13 +13,13 @@
            </style>
            <child>
              <object class="GtkButton">
-                <property name="icon-name">go-previous-symbolic</property>
+                <property name="icon-name">pan-start-symbolic</property>
                <signal name="clicked" handler="iconscroll_prev_clicked_cb"/>
              </object>
            </child>
            <child>
              <object class="GtkButton">
-                <property name="icon-name">go-next-symbolic</property>
+                <property name="icon-name">pan-end-symbolic</property>
                <signal name="clicked" handler="iconscroll_next_clicked_cb"/>
              </object>
            </child>
--- a/demos/gtk-demo/language-names.c
+++ b/demos/gtk-demo/language-names.c
@@ -18,81 +18,15 @@

 #include "language-names.h"

-#ifdef G_OS_WIN32
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#else
-
 #ifndef ISO_CODES_PREFIX
 #define ISO_CODES_PREFIX "/usr"
 #endif

 #define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
 #define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
-#endif

 static GHashTable *language_map;

-#ifdef G_OS_WIN32
-/* if we are using native Windows use native Windows API for language names */
-static BOOL CALLBACK
-get_win32_all_locales_scripts (LPWSTR locale_w, DWORD flags, LPARAM param)
-{
-  wchar_t *langname_w = NULL;
-  wchar_t locale_abbrev_w[9];
-  gchar *langname, *locale_abbrev, *locale, *p;
-  gint i;
-  const LCTYPE iso639_lctypes[] = { LOCALE_SISO639LANGNAME, LOCALE_SISO639LANGNAME2 };
-  GHashTable *ht_scripts_langs = (GHashTable *) param;
-  PangoLanguage *lang;
-
-  gint langname_size, locale_abbrev_size;
-  langname_size = GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, 0);
-  if (langname_size == 0)
-    return FALSE;
-
-  langname_w = g_new0 (wchar_t, langname_size);
-
-  if (langname_size == 0)
-    return FALSE;
-
-  GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, langname_size);
-  langname = g_utf16_to_utf8 (langname_w, -1, NULL, NULL, NULL);
-  locale = g_utf16_to_utf8 (locale_w, -1, NULL, NULL, NULL);
-  p = strchr (locale, '-');
-  lang = pango_language_from_string (locale);
-  if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
-    g_hash_table_insert (ht_scripts_langs, lang, langname);
-
-  /*
-   * Track 3+-letter ISO639-2/3 language codes as well (these have a max length of 9 including terminating NUL)
-   * ISO639-2: iso639_lctypes[0] = LOCALE_SISO639LANGNAME
-   * ISO639-3: iso639_lctypes[1] = LOCALE_SISO639LANGNAME2
-   */
-  for (i = 0; i < 2; i++)
-    {
-      locale_abbrev_size = GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, 0);
-      if (locale_abbrev_size > 0)
-        {
-          GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, locale_abbrev_size);
-
-          locale_abbrev = g_utf16_to_utf8 (locale_abbrev_w, -1, NULL, NULL, NULL);
-          lang = pango_language_from_string (locale_abbrev);
-          if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
-            g_hash_table_insert (ht_scripts_langs, lang, langname);
-
-          g_free (locale_abbrev);
-        }
-    }
-
-  g_free (locale);
-  g_free (langname_w);
-
-  return TRUE;
-}
-
-#else /* non-Windows */
-
 static char *
 get_first_item_in_semicolon_list (const char *list)
 {
@@ -276,7 +210,6 @@ languages_variant_init (const char *variant)
  g_free (filename);
  g_free (buf);
 }
-#endif

 static void
 languages_init (void)
@@ -285,13 +218,8 @@ languages_init (void)
    return;

  language_map = g_hash_table_new_full (NULL, NULL, NULL, g_free);
-
-#ifdef G_OS_WIN32
-  g_return_if_fail (EnumSystemLocalesEx (&get_win32_all_locales_scripts, LOCALE_ALL, (LPARAM) language_map, NULL));
-#else
  languages_variant_init ("iso_639");
  languages_variant_init ("iso_639_3");
-#endif
 }

 const char *
--- a/demos/gtk-demo/listbox.c
+++ b/demos/gtk-demo/listbox.c
@@ -8,7 +8,7 @@
 #include <stdlib.h>
 #include <string.h>

-static GdkTexture *avatar_texture_other;
+static GdkPixbuf *avatar_pixbuf_other;
 static GtkWidget *window = NULL;

 #define GTK_TYPE_MESSAGE		  (gtk_message_get_type ())
@@ -196,9 +196,12 @@ gtk_message_row_update (GtkMessageRow *row)
    gtk_button_set_label (GTK_BUTTON (priv->resent_by_button), priv->message->resent_by);

  if (strcmp (priv->message->sender_nick, "@GTKtoolkit") == 0)
-    gtk_image_set_from_icon_name (priv->avatar_image, "org.gtk.Demo4");
+    {
+      gtk_image_set_from_icon_name (priv->avatar_image, "org.gtk.Demo4");
+      gtk_image_set_icon_size (priv->avatar_image, GTK_ICON_SIZE_LARGE);
+    }
  else
-    gtk_image_set_from_paintable (priv->avatar_image, GDK_PAINTABLE (avatar_texture_other));
+    gtk_image_set_from_pixbuf (priv->avatar_image, avatar_pixbuf_other);

 }

@@ -341,7 +344,7 @@ do_listbox (GtkWidget *do_widget)

  if (!window)
    {
-      avatar_texture_other = gdk_texture_new_from_resource ("/listbox/apple-red.png");
+      avatar_pixbuf_other = gdk_pixbuf_new_from_resource_at_scale ("/listbox/apple-red.png", 32, 32, FALSE, NULL);

      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window),
--- a/demos/gtk-demo/listbox.ui
+++ b/demos/gtk-demo/listbox.ui
@@ -25,7 +25,6 @@
            <property name="margin-start">8</property>
            <property name="margin-end">8</property>
            <property name="icon-name">image-missing</property>
-            <property name="icon-size">large</property>
            <layout>
              <property name="column">0</property>
              <property name="row">0</property>
--- a/demos/gtk-demo/listview_applauncher.c
+++ b/demos/gtk-demo/listview_applauncher.c
@@ -8,8 +8,8 @@

 #include <gtk/gtk.h>

-/* This is the function that creates the GListModel that we need.
- * GTK list widgets need a GListModel to display, as models support change
+/* This is the function that creates the #GListModel that we need.
+ * GTK list widgets need a #GListModel to display, as models support change
 * notifications.
 * Unfortunately various older APIs do not provide list models, so we create
 * our own.
@@ -20,10 +20,10 @@ create_application_list (void)
  GListStore *store;
  GList *apps, *l;

-  /* We use a GListStore here, which is a simple array-like list implementation
+  /* We use a #GListStore here, which is a simple array-like list implementation
   * for manual management.
   * List models need to know what type of data they provide, so we need to
-   * provide the type here. As we want to do a list of applications, GAppInfo
+   * provide the type here. As we want to do a list of applications, #GAppInfo
   * is the object we provide.
   */
  store = g_list_store_new (G_TYPE_APP_INFO);
@@ -39,7 +39,7 @@ create_application_list (void)
 }

 /* This is the function we use for setting up new listitems to display.
- * We add just an GtkImage and a GtkLabel here to display the application's
+ * We add just an #GtkImage and a #GtkKabel here to display the application's
 * icon and name, as this is just a simple demo.
 */
 static void
@@ -61,8 +61,8 @@ setup_listitem_cb (GtkListItemFactory *factory,

 /* Here we need to prepare the listitem for displaying its item. We get the
 * listitem already set up from the previous function, so we can reuse the
- * GtkImage widget we set up above.
- * We get the item - which we know is a GAppInfo because it comes out of
+ * #GtkImage widget we set up above.
+ * We get the item - which we know is a #GAppInfo because it comes out of
 * the model we set up above, grab its icon and display it.
 */
 static void
@@ -85,7 +85,7 @@ bind_listitem_cb (GtkListItemFactory *factory,
 * the listitem, but this is simple code, so the default implementations are
 * enough. If we had connected signals, this step would have been necessary.
 *
- * The GtkSignalListItemFactory documentation contains more information about
+ * The #GtkSignalListItemFactory documentation contains more information about
 * this step.
 */

@@ -108,8 +108,8 @@ activate_cb (GtkListView  *list,
  app_info = g_list_model_get_item (G_LIST_MODEL (gtk_list_view_get_model (list)), position);

  /* Prepare the context for launching the application and launch it. This
-   * code is explained in detail in the documentation for GdkAppLaunchContext
-   * and GAppInfo.
+   * code is explained in detail in the documentation for #GdkAppLaunchContext
+   * and #GAppInfo.
   */
  context = gdk_display_get_app_launch_context (gtk_widget_get_display (GTK_WIDGET (list)));
  if (!g_app_info_launch (app_info,
@@ -155,13 +155,13 @@ do_listview_applauncher (GtkWidget *do_widget)
      gtk_window_set_title (GTK_WINDOW (window), "Application Launcher");
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);

-      /* The GtkListitemFactory is what is used to create GtkListItems
+      /* The #GtkListitemFactory is what is used to create #GtkListItems
       * to display the data from the model. So it is absolutely necessary
       * to create one.
-       * We will use a GtkSignalListItemFactory because it is the simplest
+       * We will use a #GtkSignalListItemFactory because it is the simplest
       * one to use. Different ones are available for different use cases.
-       * The most powerful one is GtkBuilderListItemFactory which uses
-       * GtkBuilder .ui files, so it requires little code.
+       * The most powerful one is #GtkBuilderListItemFactory which uses
+       * #GtkBuilder .ui files, so it requires little code.
       */
      factory = gtk_signal_list_item_factory_new ();
      g_signal_connect (factory, "setup", G_CALLBACK (setup_listitem_cb), NULL);
@@ -184,7 +184,7 @@ do_listview_applauncher (GtkWidget *do_widget)
       */
      g_signal_connect (list, "activate", G_CALLBACK (activate_cb), NULL);

-      /* List widgets should always be contained in a GtkScrolledWindow,
+      /* List widgets should always be contained in a #GtkScrolledWindow,
       * because otherwise they might get too large or they might not
       * be scrollable.
       */
--- a/demos/gtk-demo/listview_filebrowser.c
+++ b/demos/gtk-demo/listview_filebrowser.c
@@ -34,7 +34,6 @@ enum {
 };

 #define FILE_BROWSER_TYPE_VIEW (file_browser_view_get_type ())
-G_MODULE_EXPORT
 G_DECLARE_FINAL_TYPE (FileBrowserView, file_browser_view, FILE_BROWSER, VIEW, GObject);

 G_DEFINE_TYPE (FileBrowserView, file_browser_view, G_TYPE_OBJECT);
@@ -160,7 +159,7 @@ static void file_browser_view_init (FileBrowserView *self)
 {
 }

-G_MODULE_EXPORT char *
+char *
 filebrowser_get_display_name (GObject *object,
                              GFileInfo *info)
 {
@@ -170,7 +169,7 @@ filebrowser_get_display_name (GObject *object,
  return g_strdup (g_file_info_get_attribute_string (info, "standard::display-name"));
 }

-G_MODULE_EXPORT char *
+char *
 filebrowser_get_content_type (GObject *object,
                              GFileInfo *info)
 {
@@ -180,7 +179,7 @@ filebrowser_get_content_type (GObject *object,
  return g_strdup (g_file_info_get_attribute_string (info, "standard::content-type"));
 }

-G_MODULE_EXPORT char *
+char *
 filebrowser_get_size (GObject *object,
                      GFileInfo *info)
 {
@@ -190,7 +189,7 @@ filebrowser_get_size (GObject *object,
  return g_format_size (g_file_info_get_attribute_uint64 (info, "standard::size"));
 }

-G_MODULE_EXPORT GIcon *
+GIcon *
 filebrowser_get_icon (GObject *object,
                      GFileInfo *info)
 {
@@ -207,7 +206,7 @@ filebrowser_get_icon (GObject *object,
  return icon;
 }

-G_MODULE_EXPORT void
+void
 filebrowser_up_clicked_cb (GtkButton        *button,
                           GtkDirectoryList *list)
 {
@@ -220,7 +219,7 @@ filebrowser_up_clicked_cb (GtkButton        *button,
  gtk_directory_list_set_file (list, file);
 }

-G_MODULE_EXPORT void
+void
 filebrowser_view_activated_cb (GtkGridView      *view,
                               guint             pos,
                               GtkDirectoryList *list)
--- a/demos/gtk-demo/listview_ucd.c
+++ b/demos/gtk-demo/listview_ucd.c
@@ -9,7 +9,6 @@
 #include <gtk/gtk.h>
 #include "script-names.h"
 #include "unicode-names.h"
-#include "simplelabel.h"


 #define UCD_TYPE_ITEM (ucd_item_get_type ())
@@ -103,9 +102,7 @@ setup_centered_label (GtkSignalListItemFactory *factory,
                      GObject                  *listitem)
 {
  GtkWidget *label;
-  label = simple_label_new ();
-  simple_label_set_min_chars (SIMPLE_LABEL (label), 3);
-  simple_label_set_nat_chars (SIMPLE_LABEL (label), 20);
+  label = gtk_label_new ("");
  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
 }

@@ -114,9 +111,8 @@ setup_label (GtkSignalListItemFactory *factory,
             GObject                  *listitem)
 {
  GtkWidget *label;
-  label = simple_label_new ();
-  simple_label_set_min_chars (SIMPLE_LABEL (label), 3);
-  simple_label_set_nat_chars (SIMPLE_LABEL (label), 20);
+  label = gtk_label_new ("");
+  gtk_label_set_xalign (GTK_LABEL (label), 0);
  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
 }

@@ -125,9 +121,10 @@ setup_ellipsizing_label (GtkSignalListItemFactory *factory,
                         GObject                  *listitem)
 {
  GtkWidget *label;
-  label = simple_label_new ();
-  simple_label_set_min_chars (SIMPLE_LABEL (label), 3);
-  simple_label_set_nat_chars (SIMPLE_LABEL (label), 20);
+  label = gtk_label_new ("");
+  gtk_label_set_xalign (GTK_LABEL (label), 0);
+  gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
+  gtk_label_set_width_chars (GTK_LABEL (label), 20);
  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
 }

@@ -145,7 +142,7 @@ bind_codepoint (GtkSignalListItemFactory *factory,
  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));

  g_snprintf (buffer, 10, "%#06x", codepoint);
-  simple_label_set_text (SIMPLE_LABEL (label), buffer);
+  gtk_label_set_label (GTK_LABEL (label), buffer);
 }

 static void
@@ -164,7 +161,7 @@ bind_char (GtkSignalListItemFactory *factory,
  if (g_unichar_isprint (codepoint))
    g_unichar_to_utf8 (codepoint, buffer);

-  simple_label_set_text (SIMPLE_LABEL (label), buffer);
+  gtk_label_set_label (GTK_LABEL (label), buffer);
 }

 static void
@@ -179,7 +176,7 @@ bind_name (GtkSignalListItemFactory *factory,
  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
  name = ucd_item_get_name (UCD_ITEM (item));

-  simple_label_set_text (SIMPLE_LABEL (label), name);
+  gtk_label_set_label (GTK_LABEL (label), name);
 }

 static void
@@ -194,7 +191,7 @@ bind_type (GtkSignalListItemFactory *factory,
  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));

-  simple_label_set_text (SIMPLE_LABEL (label), get_unicode_type_name (g_unichar_type (codepoint)));
+  gtk_label_set_label (GTK_LABEL (label), get_unicode_type_name (g_unichar_type (codepoint)));
 }

 static void
@@ -209,7 +206,7 @@ bind_break_type (GtkSignalListItemFactory *factory,
  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));

-  simple_label_set_text (SIMPLE_LABEL (label), get_break_type_name (g_unichar_break_type (codepoint)));
+  gtk_label_set_label (GTK_LABEL (label), get_break_type_name (g_unichar_break_type (codepoint)));
 }

 static void
@@ -224,7 +221,7 @@ bind_combining_class (GtkSignalListItemFactory *factory,
  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));

-  simple_label_set_text (SIMPLE_LABEL (label), get_combining_class_name (g_unichar_combining_class (codepoint)));
+  gtk_label_set_label (GTK_LABEL (label), get_combining_class_name (g_unichar_combining_class (codepoint)));
 }

 static void
@@ -241,7 +238,7 @@ bind_script (GtkSignalListItemFactory *factory,
  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
  script = g_unichar_get_script (codepoint);

-  simple_label_set_text (SIMPLE_LABEL (label), get_script_name (script));
+  gtk_label_set_label (GTK_LABEL (label), get_script_name (script));
 }

 static void
--- a/demos/gtk-demo/main.c
+++ b/demos/gtk-demo/main.c
@@ -25,8 +25,6 @@
 #include "demos.h"
 #include "fontify.h"

-#include "demo_conf.h"
-
 static GtkWidget *info_view;
 static GtkWidget *source_view;

@@ -192,26 +190,22 @@ activate_about (GSimpleAction *action,
                          glib_micro_version);
  g_string_append_printf (s, "\tPango\t%s\n",
                          pango_version_string ());
-  g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
+  g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
                          gtk_get_major_version (),
                          gtk_get_minor_version (),
                          gtk_get_micro_version ());
  g_string_append_printf (s, "\nA link can appear here: <http://www.gtk.org>");

-  version = g_strdup_printf ("%s%s%s\nRunning against GTK %d.%d.%d",
+  version = g_strdup_printf ("%s\nRunning against GTK %d.%d.%d",
                             PACKAGE_VERSION,
-                             g_strcmp0 (PROFILE, "devel") == 0 ? "-" : "",
-                             g_strcmp0 (PROFILE, "devel") == 0 ? VCS_TAG : "",
                             gtk_get_major_version (),
                             gtk_get_minor_version (),
                             gtk_get_micro_version ());

  gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
-                         "program-name", g_strcmp0 (PROFILE, "devel") == 0
-                                         ? "GTK Demo (Development)"
-                                         : "GTK Demo",
+                         "program-name", "GTK Demo",
                         "version", version,
-                         "copyright", "© 1997—2021 The GTK Team",
+                         "copyright", "© 1997—2020 The GTK Team",
                         "license-type", GTK_LICENSE_LGPL_2_1,
                         "website", "http://www.gtk.org",
                         "comments", "Program to demonstrate GTK widgets",
@@ -512,7 +506,7 @@ load_file (const char *demoname,

  info_buffer = gtk_text_buffer_new (NULL);
  gtk_text_buffer_create_tag (info_buffer, "title",
-                              "size", 18 * 1024,
+                              "font", "Sans 18",
                              "pixels-below-lines", 10,
                              NULL);

@@ -751,6 +745,7 @@ demo_filter_by_name (gpointer item,
                     gpointer user_data)
 {
  GtkTreeListRow *row = item;
+  GtkFilterListModel *model = user_data;
  GListModel *children;
  GtkDemo *demo;
  guint i, n;
@@ -761,7 +756,7 @@ demo_filter_by_name (gpointer item,
    return TRUE;

  g_assert (GTK_IS_TREE_LIST_ROW (row));
-  g_assert (GTK_IS_FILTER_LIST_MODEL (user_data));
+  g_assert (GTK_IS_FILTER_LIST_MODEL (model));

  /* Show a row if itself of any parent matches */
  for (parent = row; parent; parent = gtk_tree_list_row_get_parent (parent))
@@ -906,9 +901,6 @@ activate (GApplication *app)
  window = (GtkWidget *)gtk_builder_get_object (builder, "window");
  gtk_application_add_window (GTK_APPLICATION (app), GTK_WINDOW (window));

-  if (g_strcmp0 (PROFILE, "devel") == 0)
-    gtk_widget_add_css_class (window, "devel");
-
  action = g_simple_action_new ("run", NULL);
  g_signal_connect (action, "activate", G_CALLBACK (activate_run), window);
  g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
@@ -1040,7 +1032,7 @@ out:
      g_signal_connect_swapped (G_OBJECT (demo), "destroy", G_CALLBACK (g_application_quit), app);
    }
  else
-    gtk_window_present (GTK_WINDOW (window));
+    gtk_widget_show (GTK_WIDGET (window));

  if (autoquit)
    g_timeout_add_seconds (1, auto_quit, app);
@@ -1051,10 +1043,10 @@ out:
 static void
 print_version (void)
 {
-  g_print ("gtk4-demo %s%s%s\n",
-           PACKAGE_VERSION,
-           g_strcmp0 (PROFILE, "devel") == 0 ? "-" : "",
-           g_strcmp0 (PROFILE, "devel") == 0 ? VCS_TAG : "");
+  g_print ("gtk4-demo %d.%d.%d\n",
+           gtk_get_major_version (),
+           gtk_get_minor_version (),
+           gtk_get_micro_version ());
 }

 static int
--- a/demos/gtk-demo/main.ui
+++ b/demos/gtk-demo/main.ui
@@ -25,7 +25,6 @@
          <object class="GtkButton">
            <property name="valign">center</property>
            <property name="action-name">win.run</property>
-            <property name="focus-on-click">0</property>
            <property name="label" translatable="yes">Run</property>
          </object>
        </child>
@@ -33,7 +32,6 @@
          <object class="GtkToggleButton">
            <property name="icon-name">edit-find-symbolic</property>
            <property name="valign">center</property>
-            <property name="focus-on-click">0</property>
            <property name="active" bind-source="searchbar" bind-property="search-mode-enabled" bind-flags="bidirectional|sync-create"/>
            <accessibility>
              <property name="label" translatable="yes">Search</property>
@@ -43,7 +41,6 @@
        <child type="end">
          <object class="GtkMenuButton" id="gear_menu_button">
            <property name="valign">center</property>
-            <property name="focus-on-click">0</property>
            <property name="menu-model">gear_menu</property>
            <property name="icon-name">open-menu-symbolic</property>
            <accessibility>
@@ -56,30 +53,31 @@
    <child>
      <object class="GtkBox">
        <child>
-          <object class="GtkBox">
-            <property name="width-request">220</property>
-            <property name="orientation">vertical</property>
+          <object class="GtkScrolledWindow">
+            <style>
+              <class name="sidebar"/>
+            </style>
+            <property name="width-request">120</property>
+            <property name="hscrollbar-policy">never</property>
+            <property name="min-content-width">150</property>
            <child>
-              <object class="GtkSearchBar" id="searchbar">
-                <property name="key-capture-widget">window</property>
+              <object class="GtkBox">
+                <property name="width-request">220</property>
+                <property name="orientation">vertical</property>
+
                <child>
-                  <object class="GtkSearchEntry" id="search-entry">
-                    <accessibility>
-                      <relation name="controls">listview</relation>
-                    </accessibility>
+                  <object class="GtkSearchBar" id="searchbar">
+                    <property name="key-capture-widget">window</property>
+                    <child>
+                      <object class="GtkSearchEntry" id="search-entry">
+                        <accessibility>
+                          <relation name="controls">listview</relation>
+                        </accessibility>
+                      </object>
+                    </child>
                  </object>
                </child>
-              </object>
-            </child>
-            <child>
-              <object class="GtkScrolledWindow">
-                <style>
-                  <class name="sidebar"/>
-                </style>
-                <property name="width-request">120</property>
-                <property name="hscrollbar-policy">never</property>
-                <property name="min-content-width">150</property>
-                <property name="vexpand">1</property>
+
                <child>
                  <object class="GtkListView" id="listview">
                    <style>
@@ -96,6 +94,7 @@
                    </accessibility>
                  </object>
                </child>
+
              </object>
            </child>
          </object>
--- a/demos/gtk-demo/markup.c
+++ b/demos/gtk-demo/markup.c
@@ -58,7 +58,7 @@ do_markup (GtkWidget *do_widget)
      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
-      gtk_window_set_default_size (GTK_WINDOW (window), 600, 680);
+      gtk_window_set_default_size (GTK_WINDOW (window), 450, 450);
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

      stack = gtk_stack_new ();
--- a/demos/gtk-demo/markup.txt
+++ b/demos/gtk-demo/markup.txt
@@ -1,9 +1,5 @@

-Text sizes: <span size="xx-small">tiny </span><span size="x-small">very small </span><span size="small">small </span><span size="medium">normal </span><span size="large">large </span><span size="x-large">very large </span><span size="xx-large">huge</span>
-
-Text styles: <span style="normal">Normal</span> <span style="italic">Italic</span> <span style="oblique">Olique</span>
-
-Text weights: <span weight="thin">thin</span> <span weight="light">light</span> <span weight="normal">normal</span> <span weight="bold">bold</span> <span weight="ultraheavy">ultraheavy</span>
+Text sizes: <span size="xx-small">tiny</span> <span size="x-small">very small</span> <span size="small">small</span> <span size="medium">normal</span> <span size="large">large</span> <span size="x-large">very large</span> <span size="xx-large">huge</span>

 Text <span color="gray">c<span color="green">o</span>l<span color="tomato">o</span>rs</span> and <span background="pink">backgrounds</span>

@@ -19,12 +15,6 @@ OpenType font features: <span font_desc="sans regular" font_features="dlig=0">fe

 Shortcuts: <tt>Monospace</tt> – <b>Bold</b> – <i>Italic</i> – <big>Big</big> – <small>Small</small> – <u>Underlined</u> – <s>Strikethrough</s> – Super<sup>script</sup> – Sub<sub>script</sub>

-hyphenation algorithm is a <span allow_breaks="false" style="italic">set of rules</span>, especially one codified for implementation in a computer program, that decides at which points a word can be broken over two lines with a hyphen. For example, a hyphenation algorithm might decide that impeachment can be broken as impeach‧ment or im‧peachment but not impe‧achment.
+<span allow_breaks="false">A</span> hyphenation algorithm is a set of rules, especially one codified for implementation in a computer program, that decides at which points a word can be broken over two lines with a hyphen. For example, a hyphenation algorithm might decide that impeachment can be broken as <span allow_breaks="false">impeach‧ment</span> or <span allow_breaks="false">im‧peachment</span> but not <span allow_breaks="false">impe‧achment.</span>

 <span insert_hyphens="false">one/two three/four five/six seven/eight nine/ten</span>
-
-<span line_height='1.33'>Line height: This is an example of widely spaced text. It was achieved by setting the line-height factor to 1.33. You can set the line-height factor to any value between 0 and 10.
-Note that the line height affects the spacing between paragraphs as well as between the wrapped lines inside a paragraph.</span>
-
-Transforms: <span text_transform='uppercase'>straße</span> <span text_transform='capitalize'>up, up and away</span>
-
--- a/demos/gtk-demo/menu.c
+++ b/demos/gtk-demo/menu.c
@@ -21,10 +21,8 @@ do_menu (GtkWidget *do_widget)

  if (!window)
    {
-      GtkWidget *box;
      GtkWidget *sw;
      GtkWidget *widget;
-      GtkWidget *scale;

      window = gtk_window_new ();
      gtk_window_set_title (GTK_WINDOW (window), "Menu");
@@ -33,23 +31,11 @@ do_menu (GtkWidget *do_widget)
                              gtk_widget_get_display (do_widget));
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
-      gtk_window_set_child (GTK_WINDOW (window), box);
-
      sw = gtk_scrolled_window_new ();
-      gtk_widget_set_vexpand (sw, TRUE);
-      gtk_box_append (GTK_BOX (box), sw);
+      gtk_window_set_child (GTK_WINDOW (window), sw);

      widget = demo3_widget_new ("/transparent/portland-rose.jpg");
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), widget);
-
-      scale = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 0.01, 10.0, 0.1);
-      gtk_range_set_value (GTK_RANGE (scale), 1.0);
-      gtk_box_append (GTK_BOX (box), scale);
-
-      g_object_bind_property (gtk_range_get_adjustment (GTK_RANGE (scale)), "value",
-                              widget, "scale",
-                              G_BINDING_BIDIRECTIONAL);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/menus.ui
+++ b/demos/gtk-demo/menus.ui
@@ -21,7 +21,7 @@
        <item>
          <attribute name="label" translatable="yes">Save _As...</attribute>
          <attribute name="action">app.save-as</attribute>
-          <attribute name="accel">&lt;Control&gt;&lt;Shift&gt;s</attribute>
+          <attribute name="accel">&lt;Control&gt;s</attribute>
        </item>
      </section>
      <section>
--- a/demos/gtk-demo/meson.build
+++ b/demos/gtk-demo/meson.build
@@ -29,7 +29,6 @@ demos = files([
  'fishbowl.c',
  'fixed.c',
  'fontrendering.c',
-  'frames.c',
  'gears.c',
  'gestures.c',
  'glarea.c',
@@ -67,7 +66,6 @@ demos = files([
  'paintable_animated.c',
  'paintable_emblem.c',
  'paintable_mediastream.c',
-  'paintable_symbolic.c',
  'panes.c',
  'password_entry.c',
  'peg_solitaire.c',
@@ -98,46 +96,47 @@ demos = files([
  'transparent.c',
  'tree_store.c',
  'video_player.c',
-  'font_features.c',
 ])

 gtkdemo_deps = [ libgtk_dep, ]

-extra_demo_sources = files([
-  'main.c',
-  'fontify.c',
-  'gtkfishbowl.c',
-  'fontplane.c',
-  'gtkgears.c',
-  'gtkshaderbin.c',
-  'gtkshadertoy.c',
-  'gtkshaderstack.c',
-  'gskshaderpaintable.c',
-  'puzzlepiece.c',
-  'bluroverlay.c',
-  'demoimage.c',
-  'demotaggedentry.c',
-  'demochild.c',
-  'demolayout.c',
-  'demowidget.c',
-  'demo2layout.c',
-  'singular_value_decomposition.c',
-  'four_point_transform.c',
-  'demo2widget.c',
-  'demo3widget.c',
-  'pixbufpaintable.c',
-  'script-names.c',
-  'unicode-names.c',
-  'suggestionentry.c',
-  'language-names.c',
-  'simplelabel.c',
-])
+extra_demo_sources = files(['main.c',
+                            'fontify.c',
+                            'gtkfishbowl.c',
+                            'fontplane.c',
+                            'gtkgears.c',
+                            'gtkshaderbin.c',
+                            'gtkshadertoy.c',
+                            'gtkshaderstack.c',
+                            'gskshaderpaintable.c',
+                            'puzzlepiece.c',
+                            'bluroverlay.c',
+                            'demoimage.c',
+                            'demotaggedentry.c',
+                            'demochild.c',
+                            'demolayout.c',
+                            'demowidget.c',
+                            'demo2layout.c',
+                            'singular_value_decomposition.c',
+                            'four_point_transform.c',
+                            'demo2widget.c',
+                            'demo3widget.c',
+                            'pixbufpaintable.c',
+                            'script-names.c',
+                            'unicode-names.c',
+                            'suggestionentry.c'])
+
+if harfbuzz_dep.found() and pangoft_dep.found()
+  demos += files(['font_features.c'])
+  extra_demo_sources += files(['language-names.c'])
+  gtkdemo_deps += [ harfbuzz_dep, epoxy_dep ]
+endif

 if os_unix
  demos += files('pagesetup.c')
 endif

-librsvg_dep = dependency('librsvg-2.0', version: '>= 2.52.0', required: false)
+librsvg_dep = dependency('librsvg-2.0', version: '>= 2.46.0', required: false)

 if librsvg_dep.found()
  demos += files('paintable_svg.c')
@@ -148,121 +147,46 @@ endif
 gtkdemo_args = [ '-DGDK_DISABLE_DEPRECATED', '-DGTK_DISABLE_DEPRECATED', ]

 demos_h = custom_target('gtk4 demo header',
-  output: 'demos.h',
-  input: demos,
-  command: [ find_program('geninclude.py'), '@OUTPUT@', '@INPUT@' ],
-)
+                        output: 'demos.h',
+                        input: demos,
+                        command: [ find_program('geninclude.py'), '@OUTPUT@', '@INPUT@' ])

-objcopy_supports_add_symbol = false
-objcopy = find_program('objcopy', required : false)
-if objcopy.found()
-  objcopy_supports_add_symbol = run_command(objcopy, '--help').stdout().contains('--add-symbol')
-endif
+gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
+                                            'demo.gresource.xml',
+                                            source_dir: '.')

-ld = find_program('ld', required : false)
-
-if not meson.is_cross_build() and build_machine.cpu_family() != 'arm' and build_machine.system() == 'linux' and objcopy.found() and objcopy_supports_add_symbol and ld.found()
-  glib_compile_resources = find_program('glib-compile-resources')
-
-  # Create the resource blob
-  gtkdemo_gresource = custom_target('gtkdemo.gresource',
-      input : 'demo.gresource.xml',
-      output : 'gtkdemo.gresource',
-      depfile : 'gtkdemo.gresource.d',
-      command : [glib_compile_resources,
-                 '--generate',
-                 '--internal',
-                 '--target=@OUTPUT@',
-                 '--dependency-file=@DEPFILE@',
-                 '--sourcedir=' + meson.current_source_dir(),
-                 '--sourcedir=' + meson.current_build_dir(),
-                 '@INPUT@'])
-
-  # Create resource data file
-  gtkdemo_resources_c = custom_target('gtkdemo_resources.c',
-      input : 'demo.gresource.xml',
-      output : 'gtkdemo_resources.c',
-      depfile : 'gtkdemo_resources.c.d',
-      command : [glib_compile_resources,
-                 '--generate-source',
-                 '--internal',
-                 '--target=@OUTPUT@',
-                 '--dependency-file=@DEPFILE@',
-                 '--sourcedir=' + meson.current_source_dir(),
-                 '--sourcedir=' + meson.current_build_dir(),
-                 '--external-data',
-                 '--c-name', '_g_binary_gtkdemo',
-                 '@INPUT@'])
-
-  # Create object file containing resource data
-  gtkdemo_resources_binary = custom_target('gtkdemo_resources.o',
-      input : gtkdemo_gresource,
-      output : 'gtkdemo_resources.o',
-      command : [ld,
-                 '-z', 'noexecstack',
-                 '-r',
-                 '-b','binary',
-                 '@INPUT@',
-                 '-o','@OUTPUT@'])
-
-  # Rename symbol to match the one in the C file
-  gtkdemo_resources_o = custom_target('gtkdemo_resources2.o',
-    input : gtkdemo_resources_binary,
-    output : 'gtkdemo_resources2.o',
-    command : [objcopy,
-                 '--strip-all',
-                 '--add-symbol','_g_binary_gtkdemo_resource_data=.data:0',
-                 '@INPUT@',
-                 '@OUTPUT@'])
-
-  gtkdemo_resources = [
-      gtkdemo_resources_c,
-      gtkdemo_resources_o,
-    ]
-else
-  gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
-    'demo.gresource.xml',
-    source_dir: '.',
-  )
-endif
-
-# Use a subset of compiler flags
 demo_cflags = []
 foreach flag: common_cflags
-  if flag not in ['-Werror=missing-prototypes', '-Wmissing-prototypes',
-                  '-Werror=missing-declarations', '-Wmissing-declarations',
-                  '-fvisibility=hidden']
+  if flag not in ['-Werror=missing-prototypes', '-Werror=missing-declarations', '-fvisibility=hidden']
    demo_cflags += flag
  endif
 endforeach

-gtkdemo_deps += [ demo_conf_h ]
-
 executable('gtk4-demo',
-  sources: [demos, demos_h, extra_demo_sources, gtkdemo_resources],
-  c_args: gtkdemo_args + demo_cflags,
-  dependencies: gtkdemo_deps,
-  include_directories: confinc,
-  win_subsystem: 'windows',
-  link_args: extra_demo_ldflags,
-  install: true,
-)
+           demos, demos_h, extra_demo_sources, gtkdemo_resources,
+           c_args: gtkdemo_args + demo_cflags,
+           dependencies: gtkdemo_deps,
+           include_directories: confinc,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: true)

 executable('gtk4-demo-application',
-  sources: ['application.c', gtkdemo_resources],
-  c_args: gtkdemo_args + common_cflags,
-  dependencies: gtkdemo_deps,
-  include_directories: confinc,
-  win_subsystem: 'windows',
-  link_args: extra_demo_ldflags,
-  install: true,
-)
+           'application.c', gtkdemo_resources,
+           c_args: gtkdemo_args + common_cflags,
+           dependencies: gtkdemo_deps,
+           include_directories: confinc,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: true)

 # icons
 icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')

 foreach size: ['scalable', 'symbolic']
-  install_subdir('data/' + size, install_dir: icontheme_dir)
+  install_subdir('data/' + size,
+    install_dir: icontheme_dir
+  )
 endforeach

 # desktop file
@@ -273,9 +197,4 @@ install_data('org.gtk.Demo4.gschema.xml', install_dir: gtk_schemasdir)
 gnome.compile_schemas()

 # appdata
-configure_file(
-  input: 'org.gtk.Demo4.appdata.xml.in',
-  output: 'org.gtk.Demo4.appdata.xml',
-  configuration: appdata_config,
-  install_dir: gtk_appdatadir
-)
+install_data('org.gtk.Demo4.appdata.xml', install_dir: gtk_appdatadir)
--- a/demos/gtk-demo/org.gtk.Demo4.appdata.xml.in
+++ b/demos/gtk-demo/org.gtk.Demo4.appdata.xml.in
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>org.gtk.Demo4</id>
-  <launchable type="desktop-id">org.gtk.Demo4.desktop</launchable>
+  <id>org.gtk.Demo4.desktop</id>
  <metadata_license>CC0-1.0</metadata_license>
-  <project_license>LGPL-2.1-or-later</project_license>
+  <project_license>LGPL-2.0+</project_license>
  <name>GTK Demo</name>
  <summary>Program to demonstrate GTK functions</summary>
  <description>
@@ -31,11 +30,15 @@
  <translation type="gettext">gtk-4.0</translation>
  <update_contact>matthias.clasen_at_gmail.com</update_contact>
  <developer_name>Matthias Clasen and others</developer_name>
-  <content_rating type="oars-1.1"/>
  <releases>
-    <release version="@BUILD_VERSION@">
+    <release version="3.99.0" date="2020-07-30">
      <description>
-        <p>A new build of GTK.</p>
+        <p>A new developers snapshot towards GTK 4.0.</p>
+      </description>
+    </release>
+    <release version="3.94.0" date="2018-06-25">
+      <description>
+        <p>A new developers snapshot towards GTK 4.0.</p>
      </description>
    </release>
  </releases>
--- a/demos/gtk-demo/paintable.c
+++ b/demos/gtk-demo/paintable.c
@@ -45,27 +45,26 @@ struct _GtkNuclearIconClass
 * so that it can be called from all the other demos, too.
 */
 void
-gtk_nuclear_snapshot (GtkSnapshot   *snapshot,
-                      const GdkRGBA *foreground,
-                      const GdkRGBA *background,
-                      double         width,
-                      double         height,
-                      double         rotation)
+gtk_nuclear_snapshot (GtkSnapshot *snapshot,
+                      double       width,
+                      double       height,
+                      double       rotation,
+                      gboolean     draw_background)
 {
 #define RADIUS 0.3
  cairo_t *cr;
  double size;

-  gtk_snapshot_append_color (snapshot,
-                             background,
-                             &GRAPHENE_RECT_INIT (0, 0, width, height));
+  if (draw_background)
+    gtk_snapshot_append_color (snapshot,
+                               &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 },
+                               &GRAPHENE_RECT_INIT (0, 0, width, height));

  size = MIN (width, height);
  cr = gtk_snapshot_append_cairo (snapshot,
                                  &GRAPHENE_RECT_INIT ((width - size) / 2.0,
                                                       (height - size) / 2.0,
                                                       size, size));
-  gdk_cairo_set_source_rgba (cr, foreground);
  cairo_translate (cr, width / 2.0, height / 2.0);
  cairo_scale (cr, size, size);
  cairo_rotate (cr, rotation);
@@ -95,10 +94,9 @@ gtk_nuclear_icon_snapshot (GdkPaintable *paintable,
   */

  gtk_nuclear_snapshot (snapshot,
-                        &(GdkRGBA) { 0, 0, 0, 1 }, /* black */
-                        &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 }, /* yellow */
                        width, height,
-                        nuclear->rotation);
+                        nuclear->rotation,
+                        TRUE);
 }

 static GdkPaintableFlags
--- a/demos/gtk-demo/paintable.h
+++ b/demos/gtk-demo/paintable.h
@@ -4,11 +4,10 @@
 #include <gtk/gtk.h>

 void            gtk_nuclear_snapshot           (GtkSnapshot     *snapshot,
-                                                const GdkRGBA   *foreground,
-                                                const GdkRGBA   *background,
                                                double           width,
                                                double           height,
-                                                double           rotation);
+                                                double           rotation,
+                                                gboolean         draw_background);

 GdkPaintable *  gtk_nuclear_icon_new            (double          rotation);
 GdkPaintable *  gtk_nuclear_animation_new       (gboolean        draw_background);
--- a/demos/gtk-demo/paintable_animated.c
+++ b/demos/gtk-demo/paintable_animated.c
@@ -65,12 +65,9 @@ gtk_nuclear_animation_snapshot (GdkPaintable *paintable,

  /* We call the function from the previous example here. */
  gtk_nuclear_snapshot (snapshot,
-                        &(GdkRGBA) { 0, 0, 0, 1 }, /* black */
-                        nuclear->draw_background
-                          ? &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 } /* yellow */
-                          : &(GdkRGBA) { 0, 0, 0, 0 }, /* transparent */
                        width, height,
-                        2 * G_PI * nuclear->progress / MAX_PROGRESS);
+                        2 * G_PI * nuclear->progress / MAX_PROGRESS,
+                        nuclear->draw_background);
 }

 static GdkPaintable *
--- a/demos/gtk-demo/paintable_mediastream.c
+++ b/demos/gtk-demo/paintable_mediastream.c
@@ -73,10 +73,9 @@ gtk_nuclear_media_stream_snapshot (GdkPaintable *paintable,

  /* We call the function from the previous example here. */
  gtk_nuclear_snapshot (snapshot,
-                        &(GdkRGBA) { 0, 0, 0, 1 }, /* black */
-                        &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 }, /* yellow */
                        width, height,
-                        2 * G_PI * nuclear->progress / DURATION);
+                        2 * G_PI * nuclear->progress / DURATION,
+                        TRUE);
 }

 static GdkPaintable *
@@ -151,7 +150,7 @@ gtk_nuclear_media_stream_step (gpointer data)
   * call our pause function to pause the stream.
   */
  if (nuclear->progress >= DURATION)
-    gtk_media_stream_stream_ended (GTK_MEDIA_STREAM (nuclear));
+    gtk_media_stream_ended (GTK_MEDIA_STREAM (nuclear));

  /* The timeout function is removed by the pause function,
   * so we can just always return this value.
@@ -268,11 +267,11 @@ gtk_nuclear_media_stream_init (GtkNuclearMediaStream *nuclear)
   * However, media streams need to tell GTK once they are initialized,
   * so we do that here.
   */
-  gtk_media_stream_stream_prepared (GTK_MEDIA_STREAM (nuclear),
-                                    FALSE,
-                                    TRUE,
-                                    TRUE,
-                                    DURATION);
+  gtk_media_stream_prepared (GTK_MEDIA_STREAM (nuclear),
+                             FALSE,
+                             TRUE,
+                             TRUE,
+                             DURATION);
 }

 /* And finally, we add the simple constructor we declared in the header. */
--- a/demos/gtk-demo/paintable_symbolic.c
+++ b/demos/gtk-demo/paintable_symbolic.c
@@ -1,208 +0,0 @@
-/* Paintable/Symbolic Paintable
- *
- * GdkPaintables can be made to follow the theme's colors. GTK calls
- * icons that do this symbolic icons, paintables that want to have
- * the same effect can implement the GtkSymbolicPaintable interface.
- *
- * We will adapt the original paintable example by adding the ability
- * to recolor the paintable based on the symbolic colors.
- */
-
-#include <gtk/gtk.h>
-
-#include "paintable.h"
-
-static GtkWidget *window = NULL;
-
-/* First, add the boilerplate for the object itself.
- * This part would normally go in the header.
- */
-#define GTK_TYPE_NUCLEAR_SYMBOLIC (gtk_nuclear_symbolic_get_type ())
-G_DECLARE_FINAL_TYPE (GtkNuclearSymbolic, gtk_nuclear_symbolic, GTK, NUCLEAR_SYMBOLIC, GObject)
-
-/* Declare a few warning levels, so we can pick colors based on them */
-typedef enum
-{
-  WARNING_NONE,
-  WARNING_ALERT,
-  WARNING_EMERGENCY
-} WarningLevel;
-
-/* Declare the struct. */
-struct _GtkNuclearSymbolic
-{
-  GObject parent_instance;
-
-  WarningLevel warning_level;
-};
-
-struct _GtkNuclearSymbolicClass
-{
-  GObjectClass parent_class;
-};
-
-/* Add a function to draw the nuclear icon in the given colors */
-static void
-gtk_nuclear_symbolic_snapshot_symbolic (GtkSymbolicPaintable *paintable,
-                                        GdkSnapshot          *snapshot,
-                                        double                width,
-                                        double                height,
-                                        const GdkRGBA        *colors,
-                                        gsize                 n_colors)
-{
-  GtkNuclearSymbolic *self = GTK_NUCLEAR_SYMBOLIC (paintable);
-  static const GdkRGBA transparent = { 0, };
-  const GdkRGBA *bg_color;
-
-  /* select the right background color from the warning level */
-  switch (self->warning_level)
-  {
-    case WARNING_NONE:
-      bg_color = &transparent;
-      break;
-    case WARNING_ALERT:
-      bg_color = &colors[GTK_SYMBOLIC_COLOR_WARNING];
-      break;
-    case WARNING_EMERGENCY:
-      bg_color = &colors[GTK_SYMBOLIC_COLOR_ERROR];
-      break;
-    default:
-      /* This should never happen, but we better do defensive coding
-       * with this critical icon */
-      g_assert_not_reached ();
-      bg_color = &transparent;
-      break;
-  }
-
-  /* Draw the icon with the selected warning color */
-  gtk_nuclear_snapshot (snapshot,
-                        &colors[GTK_SYMBOLIC_COLOR_FOREGROUND],
-                        bg_color,
-                        width, height,
-                        0);
-}
-
-static void
-gtk_nuclear_symbolic_symbolic_paintable_init (GtkSymbolicPaintableInterface *iface)
-{
-  iface->snapshot_symbolic = gtk_nuclear_symbolic_snapshot_symbolic;
-}
-
-/* We need to implement the functionality required by the GdkPaintable interface */
-static void
-gtk_nuclear_symbolic_snapshot (GdkPaintable *paintable,
-                                GdkSnapshot  *snapshot,
-                                double        width,
-                                double        height)
-{
-  /* Calling this function without passing a color is a neat trick
-   * to make GTK use default colors and otherwise forward the call
-   * to the snapshotting function above.
-   */
-  gtk_symbolic_paintable_snapshot_symbolic (GTK_SYMBOLIC_PAINTABLE (paintable),
-                                            snapshot,
-                                            width, height,
-                                            NULL, 0);
-}
-
-static GdkPaintableFlags
-gtk_nuclear_symbolic_get_flags (GdkPaintable *paintable)
-{
-  /* This image has a static size, but the contents may change:
-   * We draw different things when the warning level changes.
-   */
-  return GDK_PAINTABLE_STATIC_SIZE;
-}
-
-static void
-gtk_nuclear_symbolic_paintable_init (GdkPaintableInterface *iface)
-{
-  iface->snapshot = gtk_nuclear_symbolic_snapshot;
-  iface->get_flags = gtk_nuclear_symbolic_get_flags;
-}
-
-/* When defining the GType, we need to implement bot the GdkPaintable
- * and the GtkSymbolicPaintable interface */
-G_DEFINE_TYPE_WITH_CODE (GtkNuclearSymbolic, gtk_nuclear_symbolic, G_TYPE_OBJECT,
-                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                                gtk_nuclear_symbolic_paintable_init)
-                         G_IMPLEMENT_INTERFACE (GTK_TYPE_SYMBOLIC_PAINTABLE,
-                                                gtk_nuclear_symbolic_symbolic_paintable_init))
-
-static void
-gtk_nuclear_symbolic_class_init (GtkNuclearSymbolicClass *klass)
-{
-}
-
-static void
-gtk_nuclear_symbolic_init (GtkNuclearSymbolic *nuclear)
-{
-}
-
-/* And finally, we add the simple constructor we declared in the header. */
-GdkPaintable *
-gtk_nuclear_symbolic_new (void)
-{
-  return g_object_new (GTK_TYPE_NUCLEAR_SYMBOLIC, NULL);
-}
-
-/* Add some fun feature to the button */
-static void
-nuclear_button_clicked (GtkButton          *button,
-                        GtkNuclearSymbolic *nuclear)
-{
-  if (nuclear->warning_level >= WARNING_EMERGENCY)
-    {
-      /* On maximum warning level, reset the warning */
-      nuclear->warning_level = WARNING_NONE;
-      /* And sometimes (but not always to confuse people)
-       * close the window.
-       */
-      if (g_random_boolean ())
-        gtk_window_close (GTK_WINDOW (window));
-    }
-  else
-    {
-      /* Otherwise just increase the warning level */
-      nuclear->warning_level++;
-    }
-
-  /* Don't forget to emit the signal causing the paintable to redraw.
-   * Changing the warning level changes the background color after all.
-   */
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
-}
-
-GtkWidget *
-do_paintable_symbolic (GtkWidget *do_widget)
-{
-  GdkPaintable *nuclear;
-  GtkWidget *image, *button;
-
-  if (!window)
-    {
-      window = gtk_window_new ();
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Don't click!");
-      gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-      button = gtk_button_new ();
-      gtk_window_set_child (GTK_WINDOW (window), button);
-
-      nuclear = gtk_nuclear_symbolic_new ();
-      image = gtk_image_new_from_paintable (nuclear);
-
-      gtk_button_set_child (GTK_BUTTON (button), image);
-      g_signal_connect (button, "clicked", G_CALLBACK (nuclear_button_clicked), nuclear);
-      g_object_unref (nuclear);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}
--- a/demos/gtk-demo/peg_solitaire.c
+++ b/demos/gtk-demo/peg_solitaire.c
@@ -1,7 +1,7 @@
 /* Peg Solitaire
 * #Keywords: GtkGridView, game
 *
- * This demo demonstrates how to use drag-and-drop to implement peg solitaire.
+ * This demo demonstrates how to use drag'n'drop to implement peg solitaire.
 *
 */

@@ -98,7 +98,7 @@ solitaire_peg_init (SolitairePeg *peg)

 /* Add a little setter for the peg's position.
 * We want to track those so that we can check for legal moves
- * during drag-and-drop operations.
+ * during drag'n'drop operations.
 */
 static void
 solitaire_peg_set_position (SolitairePeg *peg,
--- a/demos/gtk-demo/ripple.glsl
+++ b/demos/gtk-demo/ripple.glsl
@@ -31,7 +31,7 @@ void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec
  float propagation_length = time * wave_speed;

  float t = (propagation_length - distance_from_center) / wave_length;
-  float offset_magnitude = 0.0;
+  float offset_magnitude = 0;
  if (t > 0.0)
    offset_magnitude = decay(wave_height * sin(t * 2.0 * PI), t);

--- a/demos/gtk-demo/shortcuts.c
+++ b/demos/gtk-demo/shortcuts.c
@@ -25,43 +25,43 @@ show_shortcuts (GtkWidget   *window,
  g_object_unref (builder);
 }

-G_MODULE_EXPORT void
+void
 shortcuts_builder_shortcuts (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-builder", NULL);
 }

-G_MODULE_EXPORT void
+void
 shortcuts_gedit_shortcuts (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-gedit", NULL);
 }

-G_MODULE_EXPORT void
+void
 shortcuts_clocks_shortcuts (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-clocks", NULL);
 }

-G_MODULE_EXPORT void
+void
 shortcuts_clocks_shortcuts_stopwatch (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-clocks", "stopwatch");
 }

-G_MODULE_EXPORT void
+void
 shortcuts_boxes_shortcuts (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-boxes", NULL);
 }

-G_MODULE_EXPORT void
+void
 shortcuts_boxes_shortcuts_wizard (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-boxes", "wizard");
 }

-G_MODULE_EXPORT void
+void
 shortcuts_boxes_shortcuts_display (GtkWidget *window)
 {
  show_shortcuts (window, "shortcuts-boxes", "display");
--- a/demos/gtk-demo/simplelabel.c
+++ b/demos/gtk-demo/simplelabel.c
@@ -1,260 +0,0 @@
-#include "simplelabel.h"
-
-struct _SimpleLabel
-{
-  GtkWidget parent_instance;
-
-  PangoLayout *layout;
-  int min_chars;
-  int nat_chars;
-
-  int min_width;
-  int nat_width;
-  int height;
-};
-
-struct _SimpleLabelClass
-{
-  GtkWidgetClass parent_class;
-};
-
-enum {
-  PROP_TEXT = 1,
-  PROP_MIN_CHARS,
-  PROP_NAT_CHARS,
-  NUM_PROPERTIES
-};
-
-static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
-
-G_DEFINE_TYPE (SimpleLabel, simple_label, GTK_TYPE_WIDGET)
-
-static void
-simple_label_init (SimpleLabel *self)
-{
-  self->layout = gtk_widget_create_pango_layout (GTK_WIDGET (self), "");
-  pango_layout_set_ellipsize (self->layout, PANGO_ELLIPSIZE_NONE);
-  pango_layout_set_wrap (self->layout, PANGO_WRAP_WORD);
-  pango_layout_set_width (self->layout, -1);
-}
-
-static void
-simple_label_dispose (GObject *object)
-{
-  SimpleLabel *self = SIMPLE_LABEL (object);
-
-  g_clear_object (&self->layout);
-
-  G_OBJECT_CLASS (simple_label_parent_class)->dispose (object);
-}
-
-static void
-simple_label_set_property (GObject      *object,
-                           guint         prop_id,
-                           const GValue *value,
-                           GParamSpec   *pspec)
-{
-  SimpleLabel *self = SIMPLE_LABEL (object);
-
-  switch (prop_id)
-    {
-    case PROP_TEXT:
-      simple_label_set_text (self, g_value_get_string (value));
-      break;
-
-    case PROP_MIN_CHARS:
-      simple_label_set_min_chars (self, g_value_get_int (value));
-      break;
-
-    case PROP_NAT_CHARS:
-      simple_label_set_nat_chars (self, g_value_get_int (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-simple_label_get_property (GObject     *object,
-                           guint        prop_id,
-                           GValue      *value,
-                           GParamSpec  *pspec)
-{
-  SimpleLabel *self = SIMPLE_LABEL (object);
-
-  switch (prop_id)
-    {
-    case PROP_TEXT:
-      g_value_set_string (value, pango_layout_get_text (self->layout));
-      break;
-
-    case PROP_MIN_CHARS:
-      g_value_set_int (value, self->min_chars);
-      break;
-
-    case PROP_NAT_CHARS:
-      g_value_set_int (value, self->nat_chars);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-simple_label_measure (GtkWidget      *widget,
-                      GtkOrientation  orientation,
-                      int             for_size,
-                      int            *minimum,
-                      int            *natural,
-                      int            *minimum_baseline,
-                      int            *natural_baseline)
-{
-  SimpleLabel *self = SIMPLE_LABEL (widget);
-
-  if (orientation == GTK_ORIENTATION_VERTICAL)
-    {
-      *minimum = *natural = self->height;
-    }
-  else
-    {
-      *minimum = self->min_width;
-      *natural = self->nat_width;
-    }
-}
-
-static void
-simple_label_size_allocate (GtkWidget *widget,
-                            int        width,
-                            int        height,
-                            int        baseline)
-{
-  SimpleLabel *self = SIMPLE_LABEL (widget);
-
-  pango_layout_set_width (self->layout, width * PANGO_SCALE);
-}
-
-static void
-simple_label_snapshot (GtkWidget   *widget,
-                       GtkSnapshot *snapshot)
-{
-  SimpleLabel *self = SIMPLE_LABEL (widget);
-  GtkStyleContext *context;
-
-  context = gtk_widget_get_style_context (widget);
-
-  gtk_snapshot_render_layout (snapshot, context, 0, 0, self->layout);
-}
-
-static void
-simple_label_class_init (SimpleLabelClass *class)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  object_class->dispose = simple_label_dispose;
-  object_class->set_property = simple_label_set_property;
-  object_class->get_property = simple_label_get_property;
-
-  widget_class->measure = simple_label_measure;
-  widget_class->size_allocate = simple_label_size_allocate;
-  widget_class->snapshot = simple_label_snapshot;
-
-  properties[PROP_TEXT] =
-    g_param_spec_string ("text", "Text", "Text",
-                         NULL,
-                         G_PARAM_READWRITE);
-
-  properties[PROP_MIN_CHARS] =
-    g_param_spec_int ("min-chars", "Minimum Characters", "Minimum Characters",
-                      0, G_MAXINT, 0,
-                      G_PARAM_READWRITE);
-
-  properties[PROP_NAT_CHARS] =
-    g_param_spec_int ("nat-chars", "Natural Characters", "Natural Characters",
-                      0, G_MAXINT, 0,
-                      G_PARAM_READWRITE);
-
-  g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
-}
-
-GtkWidget *
-simple_label_new (void)
-{
-  return g_object_new (SIMPLE_TYPE_LABEL, NULL);
-}
-
-void
-simple_label_set_text (SimpleLabel *self,
-                       const char  *text)
-{
-  if (strcmp (text, pango_layout_get_text (self->layout)) == 0)
-    return;
-
-  pango_layout_set_text (self->layout, text, -1);
-
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_TEXT]);
-}
-
-static void
-recalculate (SimpleLabel *self)
-{
-  PangoContext *context;
-  PangoFontMetrics *metrics;
-  int char_width;
-  int digit_width;
-  int width;
-  int ascent;
-  int descent;
-
-  context = gtk_widget_get_pango_context (GTK_WIDGET (self));
-  metrics = pango_context_get_metrics (context,
-                                       pango_context_get_font_description (context),
-                                       pango_context_get_language (context));
-  char_width = pango_font_metrics_get_approximate_char_width (metrics);
-  digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
-  ascent = pango_font_metrics_get_ascent (metrics);
-  descent = pango_font_metrics_get_descent (metrics);
-  pango_font_metrics_unref (metrics);
-
-  width = MAX (char_width, digit_width);
-
-  self->min_width = (width * self->min_chars) / PANGO_SCALE;
-  self->nat_width = (width * self->nat_chars) / PANGO_SCALE;
-  self->height = (ascent + descent) / PANGO_SCALE;
-}
-
-void
-simple_label_set_min_chars (SimpleLabel *self,
-                            int          min_chars)
-{
-  if (self->min_chars == min_chars)
-    return;
-
-  self->min_chars = min_chars;
-
-  recalculate (self);
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MIN_CHARS]);
-}
-
-void
-simple_label_set_nat_chars (SimpleLabel *self,
-                            int          nat_chars)
-{
-  if (self->nat_chars == nat_chars)
-    return;
-
-  self->nat_chars = nat_chars;
-
-  recalculate (self);
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_NAT_CHARS]);
-}
--- a/demos/gtk-demo/simplelabel.h
+++ b/demos/gtk-demo/simplelabel.h
@@ -1,15 +0,0 @@
-#pragma once
-
-#include <gtk/gtk.h>
-
-#define SIMPLE_TYPE_LABEL (simple_label_get_type ())
-G_DECLARE_FINAL_TYPE (SimpleLabel, simple_label, SIMPLE, LABEL, GtkWidget)
-
-GtkWidget * simple_label_new           (void);
-
-void        simple_label_set_text      (SimpleLabel *self,
-                                        const char  *text);
-void        simple_label_set_min_chars (SimpleLabel *self,
-                                        int          min_chars);
-void        simple_label_set_nat_chars (SimpleLabel *self,
-                                        int          nat_chars);
--- a/demos/gtk-demo/singular_value_decomposition.c
+++ b/demos/gtk-demo/singular_value_decomposition.c
@@ -2,7 +2,6 @@
 #include <float.h>
 #include <math.h>
 #include <glib.h>
-#include <assert.h>

 /* See Golub and Reinsch,
 * "Handbook for Automatic Computation vol II - Linear Algebra",
@@ -40,9 +39,6 @@ householder_reduction (double *A,
  double *pu, *pui, *pv, *pvi;
  double half_norm_squared;

-  assert (nrows >= 2);
-  assert (ncols >= 2);
-
  memcpy (U, A, sizeof (double) * nrows * ncols);

  diagonal[0] = 0.0;
@@ -209,9 +205,6 @@ givens_reduction (int nrows,
  int rotation_test;
  int iteration_count;

-  assert (nrows >= 2);
-  assert (ncols >= 2);
-
  for (i = 0, x = 0.0; i < ncols; i++)
    {
      y = fabs (diagonal[i]) + fabs (superdiagonal[i]);
@@ -349,9 +342,6 @@ sort_singular_values (int     nrows,
  double temp;
  double *p1, *p2;

-  assert (nrows >= 2);
-  assert (ncols >= 2);
-
  for (i = 0; i < ncols - 1; i++)
    {
      max_index = i;
@@ -443,12 +433,9 @@ singular_value_decomposition_solve (double *U,
  double d;
  double tolerance;

-  assert (nrows >= 2);
-  assert (ncols >= 2);
-
  tolerance = DBL_EPSILON * S[0] * (double) ncols;

-  for (i = 0, pv = V; i < ncols; i++, pv += ncols)
+  for ( i = 0, pv = V; i < ncols; i++, pv += ncols)
    {
      x[i] = 0.0;
      for (j = 0; j < ncols; j++)
--- a/demos/gtk-demo/spinbutton.c
+++ b/demos/gtk-demo/spinbutton.c
@@ -12,7 +12,7 @@
 #include <math.h>
 #include <stdlib.h>

-G_MODULE_EXPORT int
+int
 spinbutton_hex_spin_input (GtkSpinButton *spin_button,
                           double        *new_val)
 {
@@ -29,7 +29,7 @@ spinbutton_hex_spin_input (GtkSpinButton *spin_button,
    return TRUE;
 }

-G_MODULE_EXPORT int
+int
 spinbutton_hex_spin_output (GtkSpinButton *spin_button)
 {
  GtkAdjustment *adjustment;
@@ -49,7 +49,7 @@ spinbutton_hex_spin_output (GtkSpinButton *spin_button)
  return TRUE;
 }

-G_MODULE_EXPORT int
+int
 spinbutton_time_spin_input (GtkSpinButton *spin_button,
                            double        *new_val)
 {
@@ -88,7 +88,7 @@ spinbutton_time_spin_input (GtkSpinButton *spin_button,
  return TRUE;
 }

-G_MODULE_EXPORT int
+int
 spinbutton_time_spin_output (GtkSpinButton *spin_button)
 {
  GtkAdjustment *adjustment;
@@ -122,7 +122,7 @@ static const char *month[12] = {
  "December"
 };

-G_MODULE_EXPORT int
+int
 spinbutton_month_spin_input (GtkSpinButton *spin_button,
                             double        *new_val)
 {
@@ -151,7 +151,7 @@ spinbutton_month_spin_input (GtkSpinButton *spin_button,
  return TRUE;
 }

-G_MODULE_EXPORT int
+int
 spinbutton_month_spin_output (GtkSpinButton *spin_button)
 {
  GtkAdjustment *adjustment;
--- a/demos/gtk-demo/svgpaintable.c
+++ b/demos/gtk-demo/svgpaintable.c
@@ -47,24 +47,22 @@ static int
 svg_paintable_get_intrinsic_width (GdkPaintable *paintable)
 {
  SvgPaintable *self = SVG_PAINTABLE (paintable);
-  double width;
+  RsvgDimensionData data;

-  if (!rsvg_handle_get_intrinsic_size_in_pixels (self->handle, &width, NULL))
-    return 0;
+  rsvg_handle_get_dimensions (self->handle, &data);

-  return ceil (width);
+  return data.width;
 }

 static int
 svg_paintable_get_intrinsic_height (GdkPaintable *paintable)
 {
  SvgPaintable *self = SVG_PAINTABLE (paintable);
-  double height;
+  RsvgDimensionData data;

-  if (!rsvg_handle_get_intrinsic_size_in_pixels (self->handle, NULL, &height))
-    return 0;
+  rsvg_handle_get_dimensions (self->handle, &data);

-  return ceil (height);
+  return data.height;
 }

 static void
--- a/demos/gtk-demo/tabs.c
+++ b/demos/gtk-demo/tabs.c
@@ -1,11 +1,6 @@
 /* Text View/Tabs
 *
 * GtkTextView can position text at fixed positions, using tabs.
- * Tabs can specify alignment, and also allow aligning numbers
- * on the decimal point.
- *
- * The example here has three tabs, with left, numeric and right
- * alignment.
 */

 #include <gtk/gtk.h>
@@ -27,7 +22,7 @@ do_tabs (GtkWidget *do_widget)
      gtk_window_set_title (GTK_WINDOW (window), "Tabs");
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
-      gtk_window_set_default_size (GTK_WINDOW (window), 330, 130);
+      gtk_window_set_default_size (GTK_WINDOW (window), 330, 330);
      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

@@ -40,18 +35,17 @@ do_tabs (GtkWidget *do_widget)

      tabs = pango_tab_array_new (3, TRUE);
      pango_tab_array_set_tab (tabs, 0, PANGO_TAB_LEFT, 0);
-      pango_tab_array_set_tab (tabs, 1, PANGO_TAB_DECIMAL, 150);
-      pango_tab_array_set_decimal_point (tabs, 1, '.');
-      pango_tab_array_set_tab (tabs, 2, PANGO_TAB_RIGHT, 290);
+      pango_tab_array_set_tab (tabs, 1, PANGO_TAB_LEFT, 100);
+      pango_tab_array_set_tab (tabs, 2, PANGO_TAB_LEFT, 200);
      gtk_text_view_set_tabs (GTK_TEXT_VIEW (view), tabs);
      pango_tab_array_free (tabs);

      buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-      gtk_text_buffer_set_text (buffer, "one\t2.0\tthree\nfour\t5.555\tsix\nseven\t88.88\tnine", -1);
+      gtk_text_buffer_set_text (buffer, "one\ttwo\tthree\nfour\tfive\tsix\nseven\teight\tnine", -1);

      sw = gtk_scrolled_window_new ();
      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
-                                      GTK_POLICY_NEVER,
+                                      GTK_POLICY_AUTOMATIC,
                                      GTK_POLICY_AUTOMATIC);
      gtk_window_set_child (GTK_WINDOW (window), sw);
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view);
--- a/demos/gtk-demo/video_player.c
+++ b/demos/gtk-demo/video_player.c
@@ -41,26 +41,11 @@ open_clicked_cb (GtkWidget *button,
                                        "_Open",
                                        "_Cancel");

-  filter = gtk_file_filter_new ();
-  gtk_file_filter_add_pattern (filter, "*");
-  gtk_file_filter_set_name (filter, "All Files");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-  g_object_unref (filter);
-
-  filter = gtk_file_filter_new ();
-  gtk_file_filter_add_mime_type (filter, "image/*");
-  gtk_file_filter_set_name (filter, "Images");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-  g_object_unref (filter);
-
  filter = gtk_file_filter_new ();
  gtk_file_filter_add_mime_type (filter, "video/*");
  gtk_file_filter_set_name (filter, "Video");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-  
  gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (dialog), filter);
  g_object_unref (filter);
-
  gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (dialog), TRUE);
  g_signal_connect (dialog, "response", G_CALLBACK (open_dialog_response_cb), video);
  gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog));
--- a/demos/icon-browser/iconbrowserapp.c
+++ b/demos/icon-browser/iconbrowserapp.c
@@ -4,8 +4,6 @@
 #include "iconbrowserapp.h"
 #include "iconbrowserwin.h"

-#include "demo_conf.h"
-
 struct _IconBrowserApp
 {
  GtkApplication parent;
@@ -72,30 +70,26 @@ about_activated (GSimpleAction *action,
                          glib_micro_version);
  g_string_append_printf (s, "\tPango\t%s\n",
                          pango_version_string ());
-  g_string_append_printf (s, "\tGTK \t%d.%d.%d\n",
+  g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
                          gtk_get_major_version (),
                          gtk_get_minor_version (),
                          gtk_get_micro_version ());
  g_string_append_printf (s, "\nIcon theme\n\t%s", icon_theme);
-  version = g_strdup_printf ("%s%s%s\nRunning against GTK %d.%d.%d",
+  version = g_strdup_printf ("%s\nRunning against GTK %d.%d.%d",
                             PACKAGE_VERSION,
-                             g_strcmp0 (PROFILE, "devel") == 0 ? "-" : "",
-                             g_strcmp0 (PROFILE, "devel") == 0 ? VCS_TAG : "",
                             gtk_get_major_version (),
                             gtk_get_minor_version (),
                             gtk_get_micro_version ());

  gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
-                         "program-name", g_strcmp0 (PROFILE, "devel") == 0
-                                         ? "GTK Icon Browser (Development)"
-                                         : "GTK Icon Browser",
+                         "program-name", "GTK Icon Browser",
                         "version", version,
-                         "copyright", "© 1997—2021 The GTK Team",
+                         "copyright", "© 1997—2020 The GTK Team",
                         "license-type", GTK_LICENSE_LGPL_2_1,
                         "website", "http://www.gtk.org",
                         "comments", "Program to browse themed icons",
                         "authors", authors,
-                         "logo-icon-name", "org.gtk.IconBrowser4",
+                         "logo-icon-name", "org.gtk.Demo4",
                         "title", "About GTK Icon Browser",
                         "system-information", s->str,
                         NULL);
@@ -135,10 +129,6 @@ icon_browser_app_activate (GApplication *app)
  IconBrowserWindow *win;

  win = icon_browser_window_new (ICON_BROWSER_APP (app));
-
-  if (g_strcmp0 (PROFILE, "devel") == 0)
-    gtk_widget_add_css_class (GTK_WIDGET (win), "devel");
-
  gtk_window_present (GTK_WINDOW (win));
 }

--- a/demos/icon-browser/iconbrowserwin.c
+++ b/demos/icon-browser/iconbrowserwin.c
@@ -14,10 +14,8 @@ struct _IconBrowserWindow
  GtkWidget *searchbar;
  GListModel *icon_filter_model;
  GListStore *icon_store;
-  GListModel *context_model;
  GListStore *context_store;
  GtkFilter *name_filter;
-  GtkFilter *search_mode_filter;
  GtkWidget *details;
  GtkWidget *image1;
  GtkWidget *image2;
@@ -281,31 +279,11 @@ drag_prepare_texture (GtkDragSource *source,
                      GtkWidget     *widget)
 {
  GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (widget));
-  GtkSnapshot *snapshot;
-  double width, height;
-  GskRenderNode *node;
-  GskRenderer *renderer;
-  GdkTexture *texture;
-  GdkContentProvider *ret;

  if (!GDK_IS_PAINTABLE (paintable))
    return NULL;

-  snapshot = gtk_snapshot_new ();
-  width = gdk_paintable_get_intrinsic_width (paintable);
-  height = gdk_paintable_get_intrinsic_height (paintable);
-  gdk_paintable_snapshot (paintable, snapshot, width, height);
-  node = gtk_snapshot_free_to_node (snapshot);
-
-  renderer = gtk_native_get_renderer (gtk_widget_get_native (widget));
-  texture = gsk_renderer_render_texture (renderer, node, &GRAPHENE_RECT_INIT (0, 0, width, height));
-
-  ret = gdk_content_provider_new_typed (GDK_TYPE_TEXTURE, texture);
-
-  g_object_unref (texture);
-  gsk_render_node_unref (node);
-
-  return ret;
+  return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
 }

 static GdkContentProvider *
@@ -356,28 +334,6 @@ setup_scalable_image_dnd (GtkWidget *image)
  gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (source));
 }

-static void
-search_mode_toggled (GtkSearchBar      *searchbar,
-                     GParamSpec        *pspec,
-                     IconBrowserWindow *win)
-{
-  if (gtk_search_bar_get_search_mode (searchbar))
-    gtk_single_selection_set_selected (GTK_SINGLE_SELECTION (win->context_model), GTK_INVALID_LIST_POSITION);
-  else if (gtk_single_selection_get_selected (GTK_SINGLE_SELECTION (win->context_model)) == GTK_INVALID_LIST_POSITION)
-    gtk_single_selection_set_selected (GTK_SINGLE_SELECTION (win->context_model), 0);
-
-  gtk_filter_changed (win->search_mode_filter, GTK_FILTER_CHANGE_DIFFERENT);
-}
-
-static void
-selected_name_changed (GtkSingleSelection *selection,
-                       GParamSpec         *pspec,
-                       IconBrowserWindow  *win)
-{
-  if (gtk_single_selection_get_selected (selection) != GTK_INVALID_LIST_POSITION)
-    gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
-}
-
 static void
 icon_browser_window_init (IconBrowserWindow *win)
 {
@@ -404,9 +360,6 @@ icon_browser_window_init (IconBrowserWindow *win)
  win->name_filter = GTK_FILTER (gtk_custom_filter_new (filter_by_icon_name, NULL, NULL));

  gtk_multi_filter_append (GTK_MULTI_FILTER (filter), g_object_ref (win->name_filter));
-
-  g_signal_connect (win->searchbar, "notify::search-mode-enabled",  G_CALLBACK (search_mode_toggled), win);
-  g_signal_connect (win->context_model, "notify::selected",  G_CALLBACK (selected_name_changed), win);
 }

 static void
@@ -436,7 +389,6 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, searchbar);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, icon_store);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, icon_filter_model);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, context_model);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, context_store);

  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, details);
@@ -450,7 +402,6 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image8);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, label8);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, description);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, search_mode_filter);

  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), item_activated);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
--- a/demos/icon-browser/meson.build
+++ b/demos/icon-browser/meson.build
@@ -7,35 +7,30 @@ iconbrowser_sources = [
 ]

 iconbrowser_resources = gnome.compile_resources('iconbrowser_resources',
-  'iconbrowser.gresource.xml',
-  source_dir: '.',
-)
+                                                'iconbrowser.gresource.xml',
+                                                source_dir: '.')

 executable('gtk4-icon-browser',
-  sources: [iconbrowser_sources, iconbrowser_resources],
-  c_args: common_cflags,
-  dependencies: [ libgtk_dep, demo_conf_h ],
-  include_directories: confinc,
-  win_subsystem: 'windows',
-  link_args: extra_demo_ldflags,
-  install: true,
-)
+           iconbrowser_sources, iconbrowser_resources,
+           c_args: common_cflags,
+           dependencies: libgtk_dep,
+           include_directories: confinc,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: true)

 # icons
 icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')

 foreach size: ['scalable', 'symbolic']
-  install_subdir('data/' + size, install_dir: icontheme_dir)
+  install_subdir('data/' + size,
+    install_dir: icontheme_dir
+  )
 endforeach

 # desktop file
 install_data('org.gtk.IconBrowser4.desktop', install_dir: gtk_applicationsdir)

 # appdata
-configure_file(
-  input: 'org.gtk.IconBrowser4.appdata.xml.in',
-  output: 'org.gtk.IconBrowser4.appdata.xml',
-  configuration: appdata_config,
-  install_dir: gtk_appdatadir
-)
+install_data('org.gtk.IconBrowser4.appdata.xml', install_dir: gtk_appdatadir)

--- a/demos/icon-browser/org.gtk.IconBrowser4.appdata.xml.in
+++ b/demos/icon-browser/org.gtk.IconBrowser4.appdata.xml.in
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>org.gtk.IconBrowser4</id>
-  <launchable type="desktop-id">org.gtk.IconBrowser4.desktop</launchable>
+  <id>org.gtk.IconBrowser4.desktop</id>
  <metadata_license>CC0-1.0</metadata_license>
-  <project_license>LGPL-2.1-or-later</project_license>
+  <project_license>LGPL-2.0+</project_license>
  <name>GTK Icon Browser</name>
  <summary>Program to browse themed icons</summary>
  <description>
@@ -30,11 +29,15 @@
  <translation type="gettext">gtk-4.0</translation>
  <update_contact>matthias.clasen_at_gmail.com</update_contact>
  <developer_name>Matthias Clasen and others</developer_name>
-  <content_rating type="oars-1.1"/>
  <releases>
-    <release version="@BUILD_VERSION@">
+    <release version="3.99.0" date="2020-07-30">
      <description>
-        <p>A new build of GTK.</p>
+        <p>A new developers snapshot towards GTK 4.0.</p>
+      </description>
+    </release>
+    <release version="3.94.0" date="2018-06-25">
+      <description>
+        <p>A new developers snapshot towards GTK 4.0.</p>
      </description>
    </release>
  </releases>
--- a/demos/icon-browser/window.ui
+++ b/demos/icon-browser/window.ui
@@ -25,14 +25,12 @@
            </style>
            <child>
              <object class="GtkToggleButton" id="normal_radio">
-                <property name="focus-on-click">0</property>
                <property name="label" translatable="yes">Normal</property>
                <property name="active">1</property>
              </object>
            </child>
            <child>
              <object class="GtkToggleButton" id="symbolic_radio">
-                <property name="focus-on-click">0</property>
                <property name="label" translatable="yes">Symbolic</property>
                <property name="group">normal_radio</property>
                <signal name="notify::active" handler="symbolic_toggled" swapped="yes" after="yes"/>
@@ -42,7 +40,6 @@
        </child>
        <child type="end">
          <object class="GtkMenuButton" id="gear_menu_button">
-            <property name="focus-on-click">0</property>
            <property name="valign">center</property>
            <property name="menu-model">gear_menu</property>
            <property name="icon-name">open-menu-symbolic</property>
@@ -50,7 +47,6 @@
        </child>
        <child type="end">
          <object class="GtkToggleButton" id="search">
-            <property name="focus-on-click">0</property>
            <style>
              <class name="image-button"/>
            </style>
@@ -155,32 +151,19 @@
                                  </object>
                                </child>
                                <child>
-                                  <object class="GtkAnyFilter">
-                                    <child>
-                                      <object class="GtkBoolFilter" id="search_mode_filter">
-                                        <property name="expression">
-                                          <lookup name="search-mode-enabled">
-                                             searchbar
-                                          </lookup>
-                                        </property>
-                                      </object>
-                                    </child>
-                                    <child>
-                                      <object class="GtkStringFilter">
-                                        <property name="ignore-case">0</property>
-                                        <property name="match-mode">exact</property>
-                                        <property name="expression">
-                                          <lookup name="context" type="IbIcon"/>
-                                        </property>
-                                        <binding name="search">
-                                          <lookup name="id" type="IbContext">
-                                            <lookup name="selected-item" type="GtkSingleSelection">
-                                              context_model
-                                            </lookup>
-                                          </lookup>
-                                        </binding>
-                                      </object>
-                                    </child>
+                                  <object class="GtkStringFilter">
+                                    <property name="ignore-case">0</property>
+                                    <property name="match-mode">exact</property>
+                                    <property name="expression">
+                                      <lookup name="context" type="IbIcon"/>
+                                    </property>
+                                    <binding name="search">
+                                      <lookup name="id" type="IbContext">
+                                        <lookup name="selected-item" type="GtkSingleSelection">
+                                          context_model
+                                        </lookup>
+                                      </lookup>
+                                    </binding>
                                  </object>
                                </child>
                              </object>
--- a/demos/meson.build
+++ b/demos/meson.build
@@ -1,21 +1,3 @@
-gen_demo_header = find_program('../build-aux/meson/gen-demo-header.py')
-demo_profile = get_option('profile')
-
-demo_conf_h = declare_dependency(
-  sources: custom_target('demo-header',
-    command: [gen_demo_header, meson.project_source_root(), demo_profile],
-    capture: true,
-    output: 'demo_conf.h',
-    build_by_default: true,
-    build_always_stale: true,
-  )
-)
-
-# appdata
-
-appdata_config = configuration_data()
-appdata_config.set('BUILD_VERSION', meson.project_version())
-
 subdir('constraint-editor')
 subdir('gtk-demo')
 subdir('icon-browser')
--- a/demos/node-editor/help-window.ui
+++ b/demos/node-editor/help-window.ui
@@ -2,8 +2,8 @@
 <interface>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">Help</property>
-    <property name="default-width">920</property>
-    <property name="default-height">600</property>
+    <property name="default-width">720</property>
+    <property name="default-height">520</property>
    <child>
      <object class="GtkScrolledWindow">
        <child>
@@ -13,7 +13,6 @@
            <property name="right-margin">20</property>
            <property name="top-margin">20</property>
            <property name="bottom-margin">20</property>
-            <property name="monospace">1</property>
            <property name="buffer">
              <object class="GtkTextBuffer" id="buffer"/>
            </property>
--- a/demos/node-editor/meson.build
+++ b/demos/node-editor/meson.build
@@ -6,37 +6,25 @@ node_editor_sources = [
 ]

 node_editor_resources = gnome.compile_resources('node_editor_resources',
-  'node-editor.gresource.xml',
-  source_dir: '.',
-)
+                                                'node-editor.gresource.xml',
+                                                source_dir: '.')

 executable('gtk4-node-editor',
-  sources: [node_editor_sources, node_editor_resources],
-  dependencies: [ libgtk_dep, demo_conf_h ],
-  include_directories: confinc,
-  c_args: [
-    '-DNODE_EDITOR_SOURCE_DIR="@0@/../../testsuite/gsk/compare/"'.format(meson.current_source_dir())
-  ] + common_cflags,
-  win_subsystem: 'windows',
-  link_args: extra_demo_ldflags,
-  install: true,
-)
+           node_editor_sources, node_editor_resources,
+           dependencies: libgtk_dep,
+           include_directories: confinc,
+           c_args: [
+             '-DNODE_EDITOR_SOURCE_DIR="@0@/../../testsuite/gsk/compare/"'.format(meson.current_source_dir())
+           ] + common_cflags,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: false)

-# icons
-icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')
-
-foreach size: ['scalable', 'symbolic']
-  install_subdir('data/' + size, install_dir: icontheme_dir)
-endforeach
-
-# desktop file
-install_data('org.gtk.gtk4.NodeEditor.desktop', install_dir: gtk_applicationsdir)
-
-# appdata
-configure_file(
-  input: 'org.gtk.gtk4.NodeEditor.appdata.xml.in',
-  output: 'org.gtk.gtk4.NodeEditor.appdata.xml',
-  configuration: appdata_config,
-  install_dir: gtk_appdatadir
-)
+# icons, don't install them until we decide to install gtk4-node-editor
+#icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')

+#foreach size: ['scalable', 'symbolic']
+#  install_subdir('data/' + size,
+#    install_dir: icontheme_dir
+#  )
+#endforeach
--- a/Show More
+++ b/Show More