Hello. I released a new version of my theme changing app for Linux.
It adds the feature to (force) set the theme of gnome libadwaita apps without libadwaita patches, among other minor tweaks. Besides that, it can change GTK2/3/4, Kvantum, icon and cursor themes, GTK CSS and some appearance settings across GUI frameworks.
Hope this is useful.
You can also do what this app does manually. The point is that “themes” are an hack and not officially supported, as such it doesn’t make sense to provide an official interface to set them.
Do you mean for global themes, application styles or plasma styles? All application styles I can find either use Kvantum or require you to compile them manually…
Depends on what you call a theme. I was referring to color themes that can be synced with GTK apps, while the actual buttons stay the same.
Gnome 47 will have support for accent colors if that’s what you want.