When browsing your roster, it would be convenient to see their power colors in those small character pics so that team selection would become a little easier.
I would really like this. I made the same suggestion a while ago and even mocked up a screen showing how it could be handled with a small, compact change to the character selections screen: https://forums.505go.com/discussion/24560
Second this, especially with the ever-increasing number of charachters!