The brake pedal on automatic cars was sprayed black at the base. The paint faded out about half way up the pedal. The rest of the pedal was just bare metal.
On stick cars, the pedals were dipped in black paint. There should be a defined dip line on the brake and clutch pedals. I'm sure Allen has a good picture of what they should look like.
I've seen the e-brake pedal two ways. Mine is completely painted all the way up into the mechanism. Others I've seen have a dip line on them. The mechanism is bare metal.