SETTING NEW TRENDS: Fashion’s Night Out is a month away to the day, but the activities around it are already starting. On Aug. 15, Vogue.com and online fashion community Polyvore will launch FNO Style Setter, a new initiative that lets Polyvore stylists prepare for the big night with a styling contest on Polyvore.com/fno. The site will showcase merchandise from various FNO online retailers, and the virtual stylists can put together sets according to a set weekly theme, from “Fall Wardrobe Essentials” to “What to Wear on FNO” and “Dress a Style Icon for Fashion Week.” Vogue.com editors will pick the best set daily and spotlight it on their site. Blake Lively, Alexander Wang and Grace Coddington will then judge one week each, and choose two sets for the final. On Sept. 6, Vogue.com readers will be able to vote on the six sets, and the favorite one will win a trip with a friend to New York to attend a Vogue photo shoot and tour magazine’s fashion closet.