Two underhood questions

Evening folks. Working on a '72 Duster.
1. The underside of the hood is black, the car is brown. I thought the underside would match the rest of the car, but I see no evidence it was ever brown. Should it be black or match the car color?
2. The hood to cowl seal. How is this attached? I would like to remove it to refinish the underside of the hood, but at first look it appears to be stapled in. Any info is appreciated.
Thanks,
C