Ohh I meant the extra holes around your grill, sorry I should be more specific in future
If you look close its a Very dark grey with splashes of black in there, and it will probably be Satin, not Gloss and not Matte, neither of those two will do it justice...
and Ive played with it, providing I leave a little bit of extra tubing (5cm?? if I measured correct) I will have enough play to be able to unscrew the Rad and Grill and then leave the Rad hanging while I work inside..