I am in the market for a Great Dane, and have found a breeder, but I have a question about the puppy I fell in love with. He's only 2 weeks old, but he is all white except for his face. He has a black mask covering his left eye and ear, and identical markings on his right side. The strip from the top of his head down to his nose (including the muzzle) is white. She breeds champion Great Danes, but I'm having trouble figuring out what "color" he would be. Is this Harlequin, white, mantle, what?!