Well, here's my guy that I used to own, now living his days in Texas:)
I always just thought he was a tobiano, plain and simple. But then I learn from another thread that doesn't cause blue eyes..sooooo.....
What is he? A tovero? Lol
His dam was a sorrel and his sire was a grulla. His papers say red dun, but he had no dun markings, other than a faint dorsal stripe that I would consider countershading if even that.