Zero is a recessive masking genetic that masks color and pattern in the animal, resulting in a silver gray color.
Zeros were brought into the US by Phantom Dragons.
Hatchlings tend to hatch out with faint pattern that sheds out with growth. Add hypo, you get white. Add trans, you get a purple gray. Add both hypo and trans, you get a dusty lavender purple. 
No known proven lines
No known related traits