Go 'way back in this detailing area and find "paint stripper", "chrome wheels", "STS painted wheels" or similar. The duller silver-gray filler in the spoke openings is paint, and if you carefully remove the wheel from the car and use a commercial household paint stripper, you wind up with a polished and sandblasted looking chrome wheel. It's work, but it works........Yup, found out when I cleaned them that the inner part is painted. I kind of like the contrast, but when I eventually need tires, I will probably dismount them and strip the wheels to the all chrome look.
