[Nancy's Hamsters]

After reading all these what will I get if threads I decided this Thread may be a interesting, Fun and educational thread. If the Mods feel it would work better in a different sub forum feel free to move it where it may get the most activity of participation.

I'll start with a puzzling to me question which I would LOVE to find good answers to.

OK 1st Question:
Why is it that we see color genes like Extreme Dilute, and the Dilute gene which creates a Blue hamster as Color modifiers EX: Extreme Dilute Black, Extreme Dilute Golden, Blue Mink, Blue Sable Roan etc, BUT we see Umbrous as a color, BUT only on Cream based hamsters?
Is not Sable/Mink actually Umbrous Cream? We don't give any other Umbrous color a new name EX: Umbrous Golden, Umbrous Black etc.

Shouldn't Umbrous actually be a color modifier and not as is seen all over the world in Cream based only as an actual color?