All Cut Up at New York Fashion Week Sliced, diced and inter-spliced: it was a novel way of approaching color, and it made for some riotously kaleidoscopic effects on the runways this week. For quite a few designers, who introduced separates last season in madly clashing hues, combining disparate tints in a single item represented a continued commitment to color while advancing its cause by degrees. The strategically pieced and patched looks at Proenza Schouler, Phillip Lim, Lacoste, Rag & Bone and others lent galvanizing touches to spring shows that all too often were numbingly devoted to an a-seasonal palette of black and white.