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.
Pale grey-blue circles, paired overlapping lobes and small dark slate capsules sit on a soft lavender-grey ground, arranged in staggered columns and diagonal offsets. Rounded forms alternate between upright pairs and horizontal couplets, creating a steady, gently rippling rhythm across the repeat.
CC0 — use it for anything, no attribution needed.