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.
Bright green ground carries rounded square medallions outlined in blue, lilac and magenta bands, each holding four leaf-shaped petals in blue and green around a central crossing. The medallions sit in a regular grid with small blue diamond accents filling the green gaps between them, creating an even, rhythmic repeat.
CC0 — use it for anything, no attribution needed.