I’ve heard of a process called “dye sublimation” – is this how the tiles are made?

We do not use dye sublimation to create your individual tiles and tile murals. You may have seen custom tiles, mugs, or plates printed with photos that are manufactured with a process called dye sublimation – where dye pigments are heated sufficiently to fuse with a polymer (plastic) coating on the ceramic surface. Products made this way will scratch and fade over time and are particularly volatile under direct sunlight.