GTK3/4 apps have different (solid) CSDs on KDE Plasma X11 (but not Wayland)
Steps to reproduce
- Open any gtk3/4 app like gtk4-demo or epiphany (gnome-web)
Current behavior
Client side decorations look different on KDE Plasma Xorg session than on Wayland session or Gnome
Expected outcome
...They should look the same
Version information
Gtk3.22.30 , GTK4-git-master
Archlinux KDE Plasma 5.13.1 Xorg and Wayland
Additional information
Decorations on Plasma Xorg: ...and decorations on Plasma Wayland and Gnome: