tessellation, n.
1. the careful juxtaposition of shapes in a pattern; "a tessellation of hexagons"
2. the act of adorning with mosaic.
“A tom, sirs, a ginger tom and proud of it. Proud of his fine, white shirtfront that dazzles harmoniously against his orange and tangerine tessellations (oh! what a fiery suit of lights have I).”
--Angela Carter, Puss in Boots