Created attachment 122806 [details] GTK2 Theme Preview GTK2 theme preview displays incorrectly regardless of selected theme. Tested with breeze and breeze dark. STEPS TO REPRODUCE 1. Apply the global theme Breeze 2. In System Settings -> Appearance - Application Style -> GNOME/GTK Application Style -> GTK Themes, click on the GTK2 theme - Preview Theme button 3. Repeat with the global theme Breeze Dark OBSERVED RESULT The resulting theme preview window displays a Windows 95-like theme. EXPECTED RESULT Should display the window based on the GTK2 theme set. SOFTWARE/OS VERSIONS (from info centre) Operating System: Arch Linux KDE Plasma Version: 5.16.90 KDE Frameworks Version: 5.62.0 Qt Version: 5.13.1 Kernel Version: 5.3.1-arch1-1-ARCH ADDITIONAL INFORMATION GTK3 Theme preview displays correctly
Created attachment 122807 [details] GTK3 Theme Preview GTK3 theme preview for comparison
Hmm, cannot reproduce.
Just retested in 5.17.2 and this appears to be fixed.