Created attachment 861002 [details] QT6 with adwaita-dark is working > As I said in the other bug (1202446), can you attach a screenshot of this > working please? See the screeshot. I just did: > mkvtoolnix-gui -style adwaita-dark ... and the dark them is applied to the QT6 version of the app (look at the system info in the dialog: QT6 6.3.1). (I am on Gnome). > I'm gonna work on this this week. This is awesome. Many thanks.