It seems to fit but i don't know anything about this stain excepect it's pretty much albino that has melanin ?.The only place i've seen the name Tyrosinase positive albino AKA T-positive albino is with common boa's and it seems very common with rodents.Should we infact be calling are albino leo's T-positive albino tremper/T-positive bell/T-poss rainwater ???.Dose any one have better understanding of this albino stain.