That is probably one of the reasons because the modifiers blended that well with the alphas in the set. It is a great color combination. The only thing is as they are ABS DS they will get the ugly shine at some point. Maybe Vortex can produce some PBT DS in a sort of similar color. By the way, those Vortex DS caps should be made out of a mix of ABS with PBT plastic, that allow the use of DS molds. Only time will tell if their resistance to wear is similar to those caps made of PBT only.