Still trying to get this thing done this week. Been drawing and redrawing the class role frames, but I think I'm on to something now that'd be pretty cool!
So that's tank, healer, and DPS respectively from left to right. It'll just be a subtle edge flair, most likely, when I've got the finished work in the game. With a little bit of class glow and the role icon following the standard blue, green, and red colour coding.
Just have to actually render them now, and then decide whether they're subtle enough to look good as a regular thing on the player and target frames, or if I should add in that as an optional feature. Will just have to try it to know! And now that I got the design down, the road from here is not all that long.