Super Smash Bros. 4 Model Project

[uac9000]

Why are the hair textures for some characters Samus, Shulk, etc, grey instead of blond. Am i supposed to change the RGB channel or something.

cause they're colored by their material.

Colored how? I downloaded the Shulk model in 3dsmax and placed the grey hair texture in the diffuse map, and the black and white hair in the opacity Map. I don't see what makes it blond.