First, not talking about the Na Nach kippahs (which have different stitching and band). Those come on all kinds of colors.
I am wondering who wears a black yerushalmi kippah? Karlin-Stolin, some Breslovers, Toldos Aharon, and some Peirushim wear WHITE yerushalmi kippas, but who wears these black ones? (pic from Eichler’s).