Theming inconsistent in gnome version

Hey there,

I noticed that in the GNOME version theming of the apps is inconsistent, due to libadwaita not allowing theming with GTK4
I think the easiest solution would be to fall back to the adwaita theme for legacy applications that do not use GTK4 to create a coherent look and feel again.

Also, the used icon theme looks a bit dated, so using the default icon theme also solves this issue