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.
Rich violet ground carries interlocking star-like motifs shaded from lime and yellow-green at their centers to cyan and blue at their outer points, with translucent pale-blue rings behind them. Small teardrop-shaped eye forms sit between the stars along horizontal and vertical lines, so the stars and their connecting eyes repeat in a regular grid across the field.
CC0 — use it for anything, no attribution needed.