I would like to see the ability to make custom shaders added to the game. I know it's probably easier said than done. But, I think the ability for people to make their own shader combinations would allow for far greater variance in how guardians look, aside from the probably large percentage that would make their guardians all black. Different colors could be unlocked through various activities and colors could be themed to different events. It would be nice. Not many shaders work well with each other and I really like to mix it up.