I have sanded down one of our cabinet doors to see what we had under all the dark stain. They are solid cherry. We put a coat of satin polyurethane and it darkened it quite a bit. Our kitchen is so dark to begin with. Although, I know this is sacrilege, I would like to lighten it up without covering the color completely. What is the formula for whitewashing and do you think that is the best way to go? Thanks.