Created attachment 159228 [details] The window that has incorrect background for content When reading the help documentation in KDE, it is inconvenient that the content itself does not change its color according to system theme. STEPS TO REPRODUCE 1. In system settings choose Breeze Dark theme. 2. Open KHelpCenter 3. Observe the window. OBSERVED RESULT The contents area is still full white. See screenshot. EXPECTED RESULT The content should use light text on dark background. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Graphics Platform: Wayland KHelpCenter: 5.8.23041 ADDITIONAL INFORMATION As a workaround, you can use the web documentation from https://docs.kde.org
*** This bug has been marked as a duplicate of bug 462600 ***