When using Picard 3.0.4 on KDE Plasma 6.8.2, the global theme does not get respected whatsoever, and defaults to the Qt Fusion theme. Icons are however being respected.

It can cause visual problems like in the file chooser, where the scaling on the sidebar is not uniform compared to other apps' UI.

There is no option available from what I've seen to change the theme or tell Picard to use the system's global theme. I'm wondering if this is deliberate on Picard's part or was simply forgotten due to a lack of testing on KDE.