The gauge plate issue is due to the filling/welding/grinding of the lower area where all the hole's used to be for idiot light's etc..I'm going to mount a oil pressure gauge in it..( thanks for the pic's John )..
..if your referring to the small reflection area at the very top of the plate it's exactly that, a reflection.
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Hated By All....cause thats just how it is.
Okay,now before anybody reams me, this is a joke(such as it is).Humor,ha ha and the like. Don't get offended,don't go ape*****,don't PM me with opinions on my lineage. Just mellow out.