abstract stained square background full color spectrum rainbow - modern painting art - watercolor splotch effect

abstract art backdrop background banner chaos chaotic color colored colorful cut design digitally effect fleck full gamut generated gradient illustration isolated jagged material modern multi multicolored painted painting rainbow render rendering renders round serrate smudge spectrum splodge splotch spot spotty square stain stained stroke theory varicolored variegated wallpaper water watercolor web wheel white