I launched Pitivi for the first time and it showed a dark screen, in what I assume is a dark-mode theme. I could not find any preferences in the program to disable this theme.
Strangely, I also started Pitivi with a different user, and it honors the DE Window theme; borders, colors, and everything else. How do I make all users run Pitivi with the DE global theme?
P.S.: I don't know what I did, but both users now have Pitivi with dark theme.