GTK is nice but too thick. There is a repo containing CSS for GTK3 to be more compact.

I could not find the same for GTK4.

Gradience from Flathub allows to load custom CSS. The GTK3 one did not change anything.

I use Fedora Kinoite (KDE) and all GTK apps are Flatpaks.

  • zitrone 🍋
    2•4 days ago

    Gradience mainly changes the looks of libadwaita applications and it only work on gtk3 and gtk4 apps if you use the adw-gtk3 theme.

    There is an important difference between gtk4 and libadwaita. While libadwaita apps use gtk4 in the background, they cannot be themed through normal gtk theming.

    I don’t know of any way to change the compactness of gtk4 or libadwaita, sorry.

    • @boredsquirrel@slrpnk.netOP
      1•4 days ago

      It also seems to poke a hole in all Flatpak apps, giving them access to GTK3 themes.

      Thanks, maybe it is not even possible? Should ask GNOME devs…