Staudey Thank you for your work on maintaining Anki, I really appreciate it.
For a while I switched to Plata Lumine so everything was fine, but recently I moved back to Plata Noir and I'm confronted with this again. Is this a problem with Anki itself, with the theme Plata Noir, or with the way Qt5 apps theming is done in GTK desktop environments? I'm not sure where to report the bug currently.
In the meantime, until it is fixed, is there any workaround that could work short of switching themes? For example, is there a way to select a different theme for Qt5 apps only? Right now I'm on Gnome, although I have Budgie installed too.
EDIT: Well, I didn't look hard enough. The issue can be solved trivially. Anki introduced a night mode. If you enable it in the settings, it uses its own dark theme, which overrides Plata Noir. Solved!