Some of the patterns for paint colors would be tovero, overo, Tobiano, ect. The tobiano has usually a all dark face with a somewhat reffered to "sheild" on its chest, and usually has some kind of leg markings. The tail/mane is usually a mixture of white and some other solid color. They also have dark flanks most of the time. The Overo has usually a bald face, or a bonnet marking on the head and has more irregular splashes of color which makes them really eye catching at times! Haha Their legs are usually dark unlike the Tobianos and they have all dark manes and tails. The Tovero's are a mixture of the two(Overo and Tobiano) I might have missed some things but that might give you some food for thought.