deck below the rear window '69

[Chargen69]

(I know this is technically the wrong place to post this, but i tried in Paint and body and only 72 people have even seen it)

is this deck suppose to be perfectly flat, or is there a small curve in it as it goes down to the trunk?

thx

[Charger-Bodie]

It has somewhat of a reverse curve on each end, buut it pretty nuch flat front to back.