Tested with Thunar-1.8, Gimp-3, Libreoffice, Audacity. Apps with CSD work fine.
GTK2 apps (I have only Visual studio code) work fine.
Gtk implemented the decoration protocol incorrectly. Bug reported on Gtk, unfortunately nothing is happening.
(In reply to Martin Flöser from comment #2) > Gtk implemented the decoration protocol incorrectly. Bug reported on Gtk, > unfortunately nothing is happening. So there is nothing you can do? The problem is quite big and affects a lot of users.
*** This bug has been marked as a duplicate of bug 389495 ***
>Bug reported on Gtk, unfortunately nothing is happening. Do you have a link? I can't find any report. I made a patch.
(In reply to David Edmundson from comment #5) > >Bug reported on Gtk, unfortunately nothing is happening. > > Do you have a link? I can't find any report. > > I made a patch. https://gitlab.gnome.org/GNOME/gtk/issues/1019 https://bugzilla.gnome.org/show_bug.cgi?id=792889
Oh, someone had made the same patch as me. That was a waste of time.
(In reply to David Edmundson from comment #7) > Oh, someone had made the same patch as me. That was a waste of time. Stupid question: How can I try it?