The wall behind the countertop is commonly referred to as the "backsplash." The backsplash serves both functional and aesthetic purposes in kitchens and bathrooms. Functionally, it protects the wall from splashes, spills, and stains that may occur during cooking or washing activities. Aesthetically, it offers an opportunity to add a decorative element to the overall design of the space. Backsplashes are often made from various materials, such as tiles, stone, glass, or metal, and can be a focal point of the room's interior design.