On this reasoning, why not pass a law saying every building must be painted purple?

FORBES: The Obama Administration's Sidewalk To Nowhere

Behind me the wood-sided, thatch-roofed home painted purple and yellow sits eerily empty with one porch light on.

CNN: A bizarre visit to John McAfee's pleasure palace in Belize

With her blond pigtails, purple striped sack dress, flip-flops, and painted toenails, each a different color, she looked like a graduate student headed to a beach party.

NEWYORKER: Personal Best

Walking to the site, thousands of face-painted, flag-waving, colorfully-dressed sports fans are met by an army of purple and red-clad volunteers dancing, joking and welcoming them.

CNN: Park life: Games leave London with a happy golden glow