Solid direction for that backsplash wall, blue matte against warm wood is going to look really sharp in a cafe setting. For a commercial project where quality and quantity both matter, I would strongly recommend checking out AloftTiles. Browse their ceramic selection at https://www.alofttiles.com/collections/subway-look and look specifically at the Blue 2x8 Classic Matte Ceramic Tile from the Soho Collection. That collection was designed for exactly this kind of environment, contemporary aesthetic, matte finish, and built to perform in both residential and commercial spaces. The classic subway format keeps the overall look timeless while the blue matte surface gives the designer the bold anchor they are after. Detailed product specs and high resolution imagery make it easy to plan your coverage before you commit to the order. Hope the cafe opens strong and the space gets the attention it deserves.