You should try it out. It's a main-menu UCI and Aero Music is a UCI for the Music Playing screen.
Let me know if you need help installing.
What is Chakra?
I could give it a try as long as there are instructions on how to install it. I'll admit that I don't use most of the functions of the J3 however..
I've tried Chakra and Aero and here is what i found...
Chakra is neat, but it just got kind of annoying after a day or 2, so i removed it and switched back to the 2nd menu theme (my fave)
Aero is awesome, i really like it, but unfortunately it is still unstable and makes my J3 screen go black (while still on) and then the player has to be shut down and turned back on. This gets annoying so i removed it too
At this point, there aren't really any "notable" themes that are worth it. But just my 2 cents!