If you want to give your kitchen an authentic and a glowing look, metal is the thing that you need. It is because they are waterproof in the first place, and that they will give your wall a much fresher look than other materials. Just make sure that you are not modifying your whole kitchen into metal walls, because then that glow would look like an ancient Egyptian temple.
Metals are something that reflect class in every corner. Even though they have a higher maintenance than other materials, they are definitely worth the price.
You can go ahead and purchase a matte finished metal tile, or you can also consider brass or tin, because that too would do the magic.