I think that since all those who create these themes, icons, window blinds, visual styles, etc. know a good product when they see one, let them be the judges. It's sort of like baseball players voting for their own peers to be on an All Star Game. Personally, I don't know anything about any of this, so I would make a very poor judge. Let them jude themselves, that way those of us who use the products will get the best that there is. To me, that is only common sense.