I have heard the same thing, and those pictures look like really solid evidence of that. Especially since you can be 99% sure KBDFans takes all those pictures with the same camera, lights, etc., the similarity between those caps is pretty undeniable. I bought the "Black" color3 blanks, and like most people say, they are definitely not black, but a very dark charcoal grey, so I am suspicious they are the same caps used for their black on black set here: