I noticed a flickering when selecting tracks that all have the same album art. And not embedded images I mean but the same cover scan file in the directory.

This is irritating and I think it can easily be adjusted so that the picture in the album art UI panel is only redrawn when the cover image that relates to the selected track is actually different to the previous one.

Or maybe blanking the area only if there's no album art related to the selected track.

It's a minor annoyance but, it's an annoyance nevertheless and it makes fb2k seem to be less perfectly designed.