Dave Solly wrote:

Anyone know how to do this? Do you use powered drywall and mix the paint
in, or can you do it with ready mixed drywall mud?

You have to seal up the mud once it dries, or it will turn back to mud
if it gets wet.

I don't think you could put in enough paint to seal it, w/o affecting
the mud in a negative way.

Even if you wall paper, you want to prime and paint, otherwise the wall
paper & glue will stick to the drywall paper, and you could never remove
it.