ww-9

 It works correctly in Gnome Files, but in GNOME Terminal, gedit or Firefox not. Is it theme or GTK issue?

> headerbar entry, headerbar spinbutton, headerbar button, headerbar separator { margin-top: 0; margin-bottom: 2px; } this code seems to fix the issue

I don't see any potential issues with 2 or more files. The main thing is that it should be only the configuration files and not the entire cache of the...

Definitely in a folder, if something else has to be added in the future

The second one is not that important if to leave the program running. Therefore, the solution of the first one is satisfactory. Thank you