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.
Interlocking bowtie, hourglass and diamond motifs are outlined in bands of teal, lilac and pale yellow-green that fade into a dusty mauve ground. Each motif repeats in a regular grid, with mirrored halves meeting at the tile edges and a rhythm of bowties alternating with rows of small X-shaped crosses.
CC0 — use it for anything, no attribution needed.