SUMMARY I would guess transmission-qt is just based on some old qt? Because it's menus are simply transparent and not blurred, not to mention that global menu does not work with transmission-qt either. STEPS TO REPRODUCE 1. Open transmission-qt 2. Have menu blur set 3. See that transmission-qt menu blur does not work OBSERVED RESULT EXPECTED RESULT Menus should be blurred (well, in global menu too!) SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.2 Kernel Version: 5.4.30-1-MANJARO OS Type: 64-bit ADDITIONAL INFORMATION transmission-qt 2.94 (d8e60ee44f)
This is a bug in the app itself; it needs to set a flag that marks its menu as able to handle transparency properly.