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 cyan ground carries outlined star-like diamonds built from rings of nested circles in navy and violet strokes, with curved sides tapering to points. The motifs sit on a regular grid, with half-offset arches along the edges that continue the rhythm across the page.
CC0 — use it for anything, no attribution needed.