You can still use nil modifactors instead, even for colors. But it would be nice if the variants were fixed. I have many products and many variants, the math just about crashes the cart. I sell jewellery, some have the option of different stones (ie. birthstones) some have three different stone mounts. So if I offer a variety of 12 different kinds of stones X3, that's a lot of combinations of variants. When I changed it to a modificator the cart was about 30 times faster. Somehow, the engine responds better to a modificator than to a variant. Does anybody else notice the half baked button besides "Add/Update" while modifying products?
