I recently upgraded to Ubuntu 23.04 and have noticed that some applications are displaying a white border instead of applying the system theme. I suspect this may be related to the update to GTK4.
I would greatly appreciate any insights or suggestions on how to resolve this issue.
Thank you.
Edit: It happens only Wayland. In x.org the window frames are black as the system theme. If found out, that all applications affected are QT-based for example Master PDF Editor, Recoll and Qutebrowser.
Also I noticed that the mouse cursor appears bigger in QT-based applications.
