Properly theming all apps with Adwaita (Fedora)

This note was created on 2024-01-14
This note was last edited on 2024-01-14

=== System ===
1. Install "adw-gtk3-theme" [1]:
   # dnf install adw-gtk3-theme
2. Install "adw-gtk3-theme" for Flatpak apps:
   $ flatpak install org.gtk.Gtk3theme.adw-gtk3 org.gtk.Gtk3theme.adw-gtk3-dark
3. Using "gnome-tweaks" set "Legacy Applications" under Appearance to "Adw-gtk3" or "Adw-gtk3-dark".
4. To theme QT apps install the following packages:
   # dnf install adwaita-qt5 qt5-qtstyleplugins
5. Add the following lines to "$HOME/.profile":
   ~~~
   export QT_QPA_PLATFORM=xcb
   export QT_QPA_PLATFORMTHEME=gtk2
   ~~~
6. Reboot.

=== Other ===
For VSCode/Codium see: https://github.com/piousdeer/vscode-adwaita
For Firefox see: https://github.com/rafaelmardojai/firefox-gnome-theme

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1. https://github.com/lassekongo83/adw-gtk3