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.
Violet, magenta and periwinkle blues shade into rose-red centers across a grid of rounded, faceted medallions, each holding a four-armed cross-shaped flower. Diamond-shaped bridges of blue and pink sit between the medallions, so the motif repeats in evenly spaced rows and columns with a steady, staggered rhythm.
CC0 — use it for anything, no attribution needed.