I am in the planning stages of painting over a backsplash of tile in my kitchen. The tile is in great shape but I would like to change the appearance. Could you please elaborate on the process you described in above letter, please? Any tips would be helpful! My tile is approx. 6"x6", marbled beige in color. I am wanting to change these to bright colors, taking the kitchen back to time it was built, early 40's. Thank You, Gail Jennings