Actually, solid white is not uncommon. Most are put down at birth. Most breeders dont want someone owning a deaf and soon to go blind 200 lb dog. Some breeders will keep them for themselves. I trained one to handsignals.
She was a certified therapy dog for me. But that is the exception to the rule.
No one has ever recorded an actual albino dane YET. An albino will have pink/red eyes.
The solid white have a light blue eye, that does reflect pink in light.
The white are referred as "lethal white" as they dont carry for any color other than white.