A background should sit behind the text, not in place of it. This paragraph lies on the tile at its true scale — if it reads without effort, the tile can go under content.
Mint-green ground outlined in pale cream and grey-blue lines forms interlocking rounded cross-shaped rosettes, paired oval lobes, and boxed octagonal frames arranged in a staggered grid that repeats in regular rows and columns across the surface.
CC0 — use it for anything, no attribution needed.