the forms of iris

normal. basically just iris. 
aurora. iris can create multiple aurora-like clones, lacking her actual colour palette. flickers a lot and behaves just like aurorae.
fading. when iris is either feeling negative or losing control of her power, her colours start to fade.
dark. this form is extremely rare. when iris gets carried away with her abilities, it is easy for her dark form to slip in.
super. generally happens when iris is extremely happy. however, this can happen when she's full of power. very unstable and hyper.