In the process of trying new customized custom colors schemes found that the color palette assigned to Pressed Tabs is currently not working.
Custom Colors for Tabs & Tabs Selected - Pressed Foreground, Pressed Background, Pressed Frame.
Also, the Hovered Frame overlaps with Static Frame (Right Frame) for Tabs.

These settings aren't working either: Menu - Hover Frame, Pressed Foreground, Pressed Background, Pressed Frame.
There might be more, I'll try to keep identifying them and letting you know so you can fix them whenever you got the time and enthusiasm, it is that I really appreciate your piece of software and whatever feedback should be welcomed in my mind.