SUMMARY In "system setings >> appearance (when show theme,the windows don't close on "X" button) STEPS TO REPRODUCE 1. system settings 2. appearance 3. window don't close on press button "X" OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma:Arch LINUX 5.1.15-arch1-1-ARCH (available in About System) KDE Plasma Version:5.16.2 KDE Frameworks Version:5.59.0 Qt Version:5.12.4 ADDITIONAL INFORMATION
I fixed this a bit ago.