A character known to possess heterochromia possesses eyes of matching color instead.
Does not apply on symbol-shaped pupils if the pupils (not the sclera) are replaced completely.
If a character is too chibi to have colored pupils, or if nobody else has colored pupils.
If the usual eye colors are switched (Even if one eye is closed), it's no_heterochromia and- If the character's usual pupil color matches, it's heterochromia and-
