Fake woodgrain trim removal
The instrument cluster was originally covered via vacuform with a chrome looking material, usually aluminum. The "wood grain" is formed into the plastic and painted with a brown paint. It is really cheesy looking with the paint starts to separate the from the plating.
If you try to sand the grain off, you'll usually hit white plastic. I've never tried to remove the chrome. In addition to the decorative role, it also functions as a light barrier so that the instrument lights come out the instruments, and not make the dash glow wierdly. (Although that may work for you.)
The instrument cluster on the Demon was in very rough shape. Am attaching photos.