I've recently upgraded from Plasma 5 to Plasma 6. LibreOffice has no problem displaying a dark theme under X11 on Plasma 5, however on upgrade to Plasma 6 Wayland cause some issues and the only solution was to switch back to X11 while these programs are updated. However, on switching back to X11 I've noticed that now LibreOffice cannot switch to a dark theme. It always stays on the light theme no matter what you change it to. If you switch the session back to Wayland it can change to the dark theme. SOFTWARE/OS VERSIONS Operating System: KDE neon 6.0 KDE Plasma Version: 6.0.2 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Kernel Version: 6.5.0-26-generic (64-bit) Graphics Platform: Wayland
Are you still experiencing this bug on Plasma 6.3.4? There have been improvements to how gtk apps handle theming.