You can polish the matte black stripes; and wax them; and ceramic coat them.
I was hesitant to do mine initially but they were pretty torn up (visually) from the previous owner so i figured if it came out like poo I'd just remove and paint them on; no issues so far; they don't react the same to polish/wax/coating as matte black paint does (i.e., they remain matte black, no shiney spots)
ok