I hope this doesn't sound rude but, no! Actually, yellow dun is a color commonly described in fjords because they are all duns so they need ways to describe them. I have seen fjord breeders describe their horses as brown dun, yellow dun, ect. Actually, every color has variations (blood bay, black bay, liver chesnut, ect.)I'm sorry for the confusion as I have just read this article. Thank you.
There has never been a genetically verified albino horse. The albino gene does not occur in horses.
There are two colors that appear albino. One is Cremello, which is caused by two copies of the gene that makes a horse palomino or buckskin. They have pink skin and blue eyes. Cremello coloration is common in many horse breeds.
The other is dominant white. The horse is born white, unlike a gray horse that is born any other color and turns white with time. They have pink skin and can have blue or brown eyes. This color is a founding characteristic in the American White Horse, and the Camarillo White Horse. It is also seen in Thoroughbreds, Quarter Horses, Frederiksborg horses, Icelandics, Shetlands, and Franches Montagnes, and Peruvian Paso horses. Although, since it is a mutation it can occur in any breed or individual horse. These horses are not always necessarily completely white; they may resemble high-white sabinos in rare cases with fewer than 10% of any other coloration on their bodies - the coloration usually occurs over the topline, on the ears, in the mane, and in hoof striping.
High-white sabinos, overos, and tobianos are sometimes confused for albino, even though they are not.
Unlike true albinism, these horses are verifiable and reproducible genetic colors.
Althought the colors are called "albino" by some people, none of these are true albinos.