It adds more interest to change the material from countertop to wall/splash. It also emphasizes the change in space. Too much stone can create a heavy feel and a ceramic backsplash is a visually appealing surface, easy to clean.

Love this kitchen.

I have white kitchen with blue pearl counters and used a six inch beveled white tile for back splash. Looks great . I was struggling with that decision until I checked out Houzz white kitchens with blue pearl counters. very helpful