his eyes were pinkish/red. All forms of ditule genes are a form of albinism, there may not be any full albino horses but that doesnt make it impossible, I've researched and reseached and there are no FULL albinos in any organism I looked at, even humans. Some albinos have even brown or green eyes.
Oh and in the UK, we do call all dun looking horses DUN, we don't use buckskin, genetically it may be different but the only use we have for colours is to describe them.
Keep your feet on the ground when your head's in the clouds.