### Bug Description This was previously discussed at https://forum.snapcraft.io/t/getting-themed-icons-to-work-with-snap/46126 When setting the top-level icon key, a .desktop file like this ``` [Desktop Entry] Name=Telegram Comment=New era of messaging TryExec=telegram-desktop Exec=telegram-desktop -- %u Icon=snap.telegram-desktop. Terminal=false StartupWMClass=TelegramDesktop Type=Application Categories=Chat;Network;InstantMessaging;Qt; MimeType=x-scheme-handler/tg;x-scheme-handler/tonsite; Keywords=tg;chat;im;messaging;messenger;sms;tdesktop; Actions=quit; DBusActivatable=true SingleMainWindow=true X-GNOME-UsesNotifications=true X-GNOME-SingleWindow=true [Desktop Action quit] Exec=telegram-desktop -quit Name=Quit Telegram Icon=application-exit ``` Gets transformed into that ``` [Desktop Entry] Name=Telegram Comment=New era of messaging TryExec=telegram-desktop Exec=telegram-desktop -- %u Icon=${SNAP}/meta/gui/icon.png Terminal=false StartupWMClass=TelegramDesktop Type=Application Categories=Chat;Network;InstantMessaging;Qt; MimeType=x-scheme-handler/tg;x-scheme-handler/tonsite; Keywords=tg;chat;im;messaging;messenger;sms;tdesktop; Actions=quit; DBusActivatable=true SingleMainWindow=true X-GNOME-UsesNotifications=true X-GNOME-SingleWindow=true [Desktop Action quit] Exec=telegram-desktop -quit Name=Quit Telegram Icon=${SNAP}/meta/gui/icon.png ``` Both the snap.telegram-desktop. provided by snap and the system application-exit get replaced with ${SNAP}/meta/gui/icon.png. While the first one just prevents application icon from being themed, the second one replaces the action icon with application icon what is inappropriate. ### To Reproduce Have a snapcraft.yaml with top-level icon key and part's desktop key set ### Environment Snapcraft is running using LXD, installed via snap package on Arch which is running inside LXC container on NixOS (as snap has no support for NixOS). ### snapcraft.yaml ```yaml name: telegram-desktop adopt-info: telegram icon: Telegram/Resources/art/icon512@2x.png base: core24 grade: stable confinement: strict compression: lzo apps: telegram-desktop: command: usr/bin/telegram-desktop command-chain: - bin/desktop-launch common-id: org.telegram.desktop desktop: usr/share/applications/org.telegram.desktop.desktop autostart: telegram-desktop_telegram-desktop.desktop plugs: - alsa - audio-playback - audio-record - camera - desktop - desktop-legacy - gsettings - hardware-observe - home - network - network-bind - network-status - opengl - removable-media - unity7 - wayland - x11 slots: - mpris hooks: configure: command-chain: - bin/hooks-configure-desktop plugs: - desktop plugs: desktop: mount-host-font-cache: false # Support for common GTK themes # https://forum.snapcraft.io/t/how-to-use-the-system-gtk-theme-via-the-gtk-common-themes-snap/6235 gtk-3-themes: interface: content target: $SNAP/data-dir/themes default-provider: gtk-common-themes icon-themes: interface: content target: $SNAP/data-dir/icons default-provider: gtk-common-themes sound-themes: interface: content target: $SNAP/data-dir/sounds default-provider: gtk-common-themes layout: /usr/share/alsa: bind: $SNAP/usr/share/alsa /usr/share/pipewire: bind: $SNAP/usr/share/pipewire /usr/share/X11: bind: $SNAP/usr/share/X11 /usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/gtk-3.0: bind: $SNAP/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/gtk-3.0 /usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/pipewire-0.3: bind: $SNAP/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/pipewire-0.3 /usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/spa-0.2: bind: $SNAP/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/spa-0.2 /usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/webkit2gtk-4.1: bind: $SNAP/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/webkit2gtk-4.1 parts: telegram: plugin: cmake source: . source-type: git parse-info: [usr/share/metainfo/org.telegram.desktop.metainfo.xml] build-environment: - LD_LIBRARY_PATH: $CRAFT_STAGE/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH} - LDFLAGS: ${LDFLAGS:+$LDFLAGS} -s build-packages: - clang - libtool-bin - python3 - protobuf-compiler - libasound2-dev - libavif-dev - libboost-regex-dev - libgirepository1.0-dev - libglib2.0-dev - libheif-dev - libopenal-dev - libopus-dev - libprotobuf-dev - libpulse-dev - libssl-dev - libxcb1-dev - libxcb-keysyms1-dev - libxcb-record0-dev - libxcb-screensaver0-dev - zlib1g-dev stage-packages: - libasound2t64 - libavif16 - libboost-regex1.83.0 - libgeoclue-2-0 - libgeocode-glib-2-0 - libglib2.0-0t64 - libheif1 - libopenal1 - libopus0 - libprotobuf-lite32t64 - libpulse0 - libssl3t64 - libwebkit2gtk-4.1-0 - libxcb1 - libxcb-keysyms1 - libxcb-record0 - libxcb-screensaver0 - zlib1g - glib-networking cmake-generator: Ninja cmake-parameters: - -DCMAKE_BUILD_TYPE=Release - -DCMAKE_INSTALL_PREFIX=/usr - -DCMAKE_PREFIX_PATH=$CRAFT_STAGE/usr - -DTDESKTOP_API_ID=611335 - -DTDESKTOP_API_HASH=d524b414d21f4d37f08684c1df41ac9c - -DDESKTOP_APP_USE_PACKAGED_LAZY=ON override-pull: | craftctl default version_file=Telegram/build/version version=$(sed -n "s/AppVersionStr[ ]\+\(.*\)\+/\1/p" $version_file) beta=$(sed -n "s/BetaChannel[ ]\+\(.*\)\+/\1/p" $version_file) if [ "$beta" != "0" ]; then version="$version-beta" fi version="${version}$(git describe --tags | sed 's,^v[^-]\+,,')" craftctl set version="$version" override-build: | craftctl default APP_ID=org.telegram.desktop sed -i "s/^Icon=$APP_ID$/Icon=snap.telegram-desktop./g" "$CRAFT_PART_INSTALL/usr/share/applications/$APP_ID.desktop" for i in $(find "$CRAFT_PART_INSTALL/usr/share/icons" -name "$APP_ID*.svg" -o -name "$APP_ID*.png"); do PREFIXED="$(dirname "$i")/snap.$CRAFT_PROJECT_NAME.$(basename "$i" | sed "s/$APP_ID//")" mv "$i" "$PREFIXED" DEST="$(dirname "$i" | sed 's@usr/share@meta/gui@')" mkdir -p "$DEST" cp -r "$PREFIXED" "$DEST" done after: - ada - ffmpeg - libjxl - qt - rnnoise - webrtc patches: source: https://github.com/desktop-app/patches.git source-depth: 1 source-commit: 61bbacab28d377d0a2771cc87e008554e2f23ffb plugin: dump override-pull: | craftctl default cp -r . "$CRAFT_STAGE/patches" override-prime: | rm -rf patches stage: [-./*] desktop-qt: source: https://github.com/desktop-app/snapcraft-desktop-helpers.git source-depth: 1 source-subdir: qt plugin: make make-parameters: ["FLAVOR=qt5"] build-environment: - LD_LIBRARY_PATH: $CRAFT_STAGE/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH} build-packages: - build-essential - dpkg-dev - gtk-update-icon-cache - libglib2.0-bin - libgtk-3-0t64 stage-packages: - libc-bin - libgdk-pixbuf-2.0-0 - libnvidia-egl-wayland1 - libxkbcommon0 - locales-all - shared-mime-info - xdg-user-dirs override-prime: | craftctl default update-mime-database usr/share/mime glib-compile-schemas usr/share/glib-2.0/schemas for theme in usr/share/icons/*; do if [ -f "$theme/index.theme" ] && [ ! -f "$theme/icon-theme.cache" ]; then update-icon-caches "$theme" fi done GTK_PATH=$PWD/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/gtk-3.0 /usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/libgtk-3-0t64/gtk-query-immodules-3.0 > usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/gtk-3.0/3.0.0/immodules/immodules.cache after: - telegram ada: source: https://github.com/ada-url/ada.git source-depth: 1 source-tag: v2.9.0 plugin: cmake build-environment: - LDFLAGS: ${LDFLAGS:+$LDFLAGS} -s cmake-generator: Ninja cmake-parameters: - -DCMAKE_BUILD_TYPE=Release - -DCMAKE_INSTALL_PREFIX=/usr - -DADA_TESTING=OFF - -DADA_TOOLS=OFF prime: - -./usr/include - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/cmake - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.a ffmpeg: plugin: nil build-packages: - libavcodec-dev - libavfilter-dev - libavformat-dev - libavutil-dev - libswresample-dev - libswscale-dev stage-packages: - libavcodec60 - libavfilter9 - libavformat60 - libavutil58 - libswresample4 - libswscale7 - va-driver-all - vdpau-driver-all override-build: | craftctl default mv "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/blas/"* "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR" rmdir "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/blas" mv "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/lapack/"* "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR" rmdir "$CRAFT_PART_INSTALL/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/lapack" libjxl: source: https://github.com/libjxl/libjxl.git source-depth: 1 source-tag: v0.11.1 plugin: cmake build-environment: - LDFLAGS: ${LDFLAGS:+$LDFLAGS} -s cmake-generator: Ninja cmake-parameters: - -DCMAKE_BUILD_TYPE=Release - -DCMAKE_INSTALL_PREFIX=/usr - -DBUILD_TESTING=OFF - -DJPEGXL_ENABLE_DEVTOOLS=OFF - -DJPEGXL_ENABLE_TOOLS=OFF - -DJPEGXL_INSTALL_JPEGLI_LIBJPEG=ON - -DJPEGXL_ENABLE_DOXYGEN=OFF - -DJPEGXL_ENABLE_MANPAGES=OFF - -DJPEGXL_ENABLE_BENCHMARK=OFF - -DJPEGXL_ENABLE_EXAMPLES=OFF - -DJPEGXL_ENABLE_JNI=OFF - -DJPEGXL_ENABLE_SJPEG=OFF - -DJPEGXL_ENABLE_OPENEXR=OFF - -DJPEGXL_ENABLE_SKCMS=OFF stage: - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/libbrotli* - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/libhwy* prime: - -./usr/bin - -./usr/include - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/cmake - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/pkgconfig - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.a - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.so - -./usr/share qt: plugin: nil build-environment: - LDFLAGS: ${LDFLAGS:+$LDFLAGS} -s build-packages: - libdbus-1-dev - libegl-dev - libfontconfig1-dev - libfreetype-dev - libglib2.0-dev - libglx-dev - libgtk-3-dev - libharfbuzz-dev - libice-dev - libicu-dev - liblcms2-dev - libopengl-dev - libpcre2-dev - libpng-dev - libsm-dev - libssl-dev - libvulkan-dev - libwayland-dev - libx11-dev - libx11-xcb-dev - libxcb1-dev - libxcb-cursor-dev - libxcb-glx0-dev - libxcb-icccm4-dev - libxcb-image0-dev - libxcb-keysyms1-dev - libxcb-randr0-dev - libxcb-render0-dev - libxcb-render-util0-dev - libxcb-shape0-dev - libxcb-shm0-dev - libxcb-sync-dev - libxcb-util-dev - libxcb-xfixes0-dev - libxcb-xkb-dev - libxkbcommon-dev - libxkbcommon-x11-dev - zlib1g-dev stage-packages: - libdbus-1-3 - libegl1 - libfontconfig1 - libfreetype6 - libglib2.0-0t64 - libglx0 - libgtk-3-0t64 - libharfbuzz0b - libice6 - libicu74 - liblcms2-2 - libopengl0 - libpcre2-16-0 - libpng16-16t64 - libsm6 - libssl3t64 - libvulkan1 - libwayland-client0 - libwayland-cursor0 - libwayland-egl1 - libwayland-server0 - libx11-6 - libx11-xcb1 - libxcb1 - libxcb-cursor0 - libxcb-glx0 - libxcb-icccm4 - libxcb-image0 - libxcb-keysyms1 - libxcb-randr0 - libxcb-render0 - libxcb-render-util0 - libxcb-shape0 - libxcb-shm0 - libxcb-sync1 - libxcb-util1 - libxcb-xfixes0 - libxcb-xkb1 - libxkbcommon0 - libxkbcommon-x11-0 - zlib1g - mesa-vulkan-drivers - xkb-data override-pull: | QT=6.8.2 git clone -b v${QT} --depth=1 https://github.com/qt/qt5.git . git submodule update --init --recursive --depth=1 qtbase qtdeclarative qtwayland qtimageformats qtsvg qtshadertools cd qtbase find $CRAFT_STAGE/patches/qtbase_${QT} -type f -print0 | sort -z | xargs -r0 git apply cd ../qtwayland find $CRAFT_STAGE/patches/qtwayland_${QT} -type f -print0 | sort -z | xargs -r0 git apply cd .. override-build: | cmake -GNinja -B $CRAFT_PART_BUILD \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_INSTALL_PREFIX=/usr \ -DCMAKE_PREFIX_PATH=$CRAFT_STAGE/usr \ -DINSTALL_LIBDIR=/usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR \ -DQT_GENERATE_SBOM=OFF \ -DINPUT_openssl=linked cmake --build . -j$CRAFT_PARALLEL_BUILD_COUNT DESTDIR="$CRAFT_PART_INSTALL" cmake --install . prime: - -./usr/bin - -./usr/doc - -./usr/include - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/cmake - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/pkgconfig - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.a - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.la - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.prl - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.so - -./usr/libexec - -./usr/metatypes - -./usr/mkspecs - -./usr/modules - -./**/objects-* after: - libjxl - patches rnnoise: source: https://gitlab.xiph.org/xiph/rnnoise.git source-depth: 1 source-commit: 7f449bf8bd3b933891d12c30112268c4090e4d59 plugin: autotools build-environment: - CFLAGS: -O2 -s autotools-configure-parameters: - --prefix=/usr - --libdir=\${exec_prefix}/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR - --disable-static - --disable-examples - --disable-doc prime: - -./usr/include - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/pkgconfig - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.la - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.so - -./usr/share systemd: plugin: nil stage-packages: - systemd stage: - ./usr/bin/systemd-detect-virt webrtc: source: https://github.com/desktop-app/tg_owt.git source-depth: 1 source-commit: 8198c4d8b91e22d68eb5c7327fd408e3b6abcc79 plugin: cmake build-environment: - LDFLAGS: ${LDFLAGS:+$LDFLAGS} -s build-packages: - yasm - libdrm-dev - libegl-dev - libgbm-dev - libgl-dev - libglib2.0-dev - libopenh264-dev - libopus-dev - libpipewire-0.3-dev - libssl-dev - libvpx-dev - libx11-dev - libxcomposite-dev - libxdamage-dev - libxext-dev - libxfixes-dev - libxrender-dev - libxrandr-dev - libxtst-dev stage-packages: - libdrm2 - libegl1 - libgbm1 - libgl1 - libglib2.0-0t64 - libopenh264-7 - libopus0 - libssl3t64 - libvpx9 - libx11-6 - libxcomposite1 - libxdamage1 - libxext6 - libxfixes3 - libxrender1 - libxrandr2 - libxtst6 - pipewire cmake-generator: Ninja cmake-parameters: - -DCMAKE_BUILD_TYPE=Release - -DCMAKE_INSTALL_PREFIX=/usr - -DCMAKE_PREFIX_PATH=$CRAFT_STAGE/usr prime: - -./usr/include - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/cmake - -./usr/lib/$CRAFT_ARCH_TRIPLET_BUILD_FOR/*.a after: - ffmpeg - libjxl ``` ### Relevant log output ```shell There doesn't seem to be any relevant logs ``` ### Additional context _No response_