The reason grey horses are predisposed to skin cancers is because many times they have pink skin which will burn. Just like with people too much exposure to radiation will cause skin cancers. Cremellos, because of their pink skin would have the same disposition. When considering buying the cremello lookin into a good sheet (fly sheets work) along with extra coverage with leg wraps and fly masks to prevent burning.
Mercury - 2002 bay tb gelding
Cobalt - 2006 bay sw warmblood x QH gelding
Cricket- 1996 chestnut tb gelding
Bella Blues - 2007 Australian shepher/Blue heeler mix
Titan W. - 2008 Jack Russell Terrier