What are crested gecko morphs?

you can get a number of different morph types, some flame witch are red, some dalmations witch are obviously spotty, harlequin, striped but overall they are smallish, they look scaly, they look like they are constantly smiling and have prickles running around the edges of their head, five indivdual toes. and they have pupils witch appear as a slit but they get bigger at night