I believe the mocha/latte is in the BLUE eyed complex with lesser/butter, mojave, phantom, Vin Russo, hidden and special.
Amir does have his own BLACK eyed leucistic hets also. I think maybe they are called "flame hypo" but I might have the name wrong. Last I heard they might not have the yellow blotches that the fire tends to have in the homozygous form. I'm not sure if they have been proven compatible with fire or not.
Also, sulfur has now been found to produce black eyed leucistic but I don't think it has been tested for compatibility with fire yet. I think it does have the yellow blotches on the leucistics. Sulfur could be the exact same as fire, or perhaps a different mutation of the same gene as fire, or a mutation of a different gene that just happens to look a lot like fire in both the heterozygous and homozygous forms. Just not enough breedings to know yet.