Bathroom Wall Color?
A very light coral, light minty green-pale yellow. Any pastel color but a very light one would look nice. Good luck
Inexpensive Fix for Old Dark Paneling?
Kiltz it-fill in all the old holes, and paint it. I have the same problem here. Some people go to the expense of wall papering over it, which I also have as a result from a previous owner. ugh.