Not to well actually your well actually but they’re all anodized to prevent corrosion and scratches (the oxide layer is harder than the underlying aluminum) - the silver one is just undyed.
Well actually, your not well actually to the well actually was actually a well actually of the well actually. Just sayin’.
And in the pictures you can see a clear color difference between the anodized silver body and the exposed aluminum. It's subtle from a distance, but if you zoom in a bit its pretty obvious