When you select a theme it will remain highlighted using the accent color of the selected theme. The notifications are also improved and you can see the theme icon in the notification preview.
Roko had to learn all of these from scratch, in order to make it. He is always improving our custom TROMjaro scripts and on top of that he is a proper human being: calm, nice, smart, down to Earth, and so friendly. How awesome that he is helping TROM so much without asking anything in return. That0s becuase he does not "work for TROM", we all work together to build something important and useful!