Can't tell Rogue's and Prof X's tiles apart

Marvel Puzzle Quest MPQ Suggestions and Feedback
1

They look too similar. When playing them together it’s too much work to figure out who’s going to make the match.

2

Rogue is matching the Green and Red ones. Prof X is matching the Blue and Purple ones. You’re on your own for Yellow.

3

If you tap on a tile it’ll tell you whose it is, on mobile at least, too long since I played on Steam for me to remember if it does there too.

4

When I’m trying to clear a PvE sub in 30 minutes or under for top 10 that is too much work! Hey, waitaminute, if I’m trying to clear a PvE sub in 30 minutes or under for top 10, why am i using Rogue and Prof X???

Never mind, developers. Operator error.