(4 of 12) Fashion Week TrendsFrom Marc Jacobs to Zac Posen to Diane von Furstenberg, all the top designers unveiled their spring collections at New York Fashion Week earlier this month. And from all the shows, there seemed to be some common threads. Here, we highlight 12 of hottest trends seen on the runway. Colors The runways were illuminated this season with bold blues, bright yellows, and coral pinks. With a splash of at least one of these shades in almost every collection, it was clear designers weren’t afraid to play with color.