Just lovely …
“More Jamie Shovlin from the same exhibition at Tate Britain – he’s sorted his crayon’s by hue in an attempt to form tetrads – combinations of colours from four equidistant points around the circle that when combined create perfect greys. There are 720 possible tetrad combinations with this many Crayolas and although Shovlin started the combinations, he gave up after trying out about twenty or so. File under O for “obsessive”.”