I wanted to finally try the DarkMode in KDE, but it fails with Breeze Dark already at the implementation in connection with the playlist riders of DeaDBeeF. The optical separation of the same is practically non-existent:
It should still look similar (but negative) in DarkMode:
I know that DeaDBeeF has a Gtk interface and that can cause problems. Is there anything that can be done?
This isn’t going to be the most helpful response but it is either a problem with the application or the breeze-gtk theme.
I guess you would need to look at the application and see if it is using something sane to highlight the current track. If it is, report it as a bug on the breeze gtk theme.
You could try a different GTK theme as well. I have used this and it worked as far as i could see. It may make more sane choices since it will pull based on your selected plasma theme.
In DeaDBeef preferences the GUI Plugin can be set to GTK2 or GTK3. I have mine set to GTK3 always. I’m not sure if this will help or not, but it’s worth checking as the GUI does “behave” a bit differently.