For now, it's definitely one of the few themes that works well with version 89.0 in regards to distinguish the current active tab.

Great job!

My eyes rejoice in song. This theme, they sing, is the one. Putting aside the imminent terror and confusion that grips my very being as I reel upon the discovery that my eyes can not only produce audible sounds, but also sing coherent lyrics, I must say that this theme appears to be exactly what I'm looking for. Verily, it is a slam dunk of a theme. Zounds!