I meant to add that the reason for all the different shades are because of the kind of dun the parent was. In other words, zebra dun, lobo dun, gold dun, coyote dun. These can essentially make different shades of "dunskins" when bred to a cream parent. This is where knowing the parents can be useful. Other modifiers like sooty or pangare can make a different look also. If you look at the horse in my "barn" named Duke, he is extremely sooty and it almost makes him look black at times.