Purple = Donkey - clueless, newbie, untrainable, unable to read a board or a bluff.
Yellow = Jackyl - maniacal raiser, no regard for position, check raiser, reraise an more raising.
Green = Elephant - calling station, ace master, flush master, any pair is good.
Orange = Tiger - semi-pro, internet regular, tricky, aggressive, can make a lay down - bluffable.
Red = Eagle - pro, internet and live experience will swoop in on your bankroll, unpredictable.