In a further sign of these more-subdued times, Prada’s party on Friday night was far calmer than seasons past. There were no rock bands or celebrities swilling beers till midnight, just a civilized group of designers, editors and models who arrived to the SoHo flagship for cocktails at 6 and were out of there by 9. Jason Wu, Alberta Ferretti, Zac Posen, Maria Cornejo, Zoe Saldana, Akiko Ogawa and a host of others came to congratulate stylist Alex White, who designed the windows and interiors of the store for Prada’s Iconoclast series. White’s vision began with the “good” — an all-white grouping on the Broadway side — and ended with the “bad” — a black-and-red display of mannequins wearing Mickey Mouse ears facing Mercer Street. Needless to say, most folks congregated toward the bad, where guests like Sophia Hesketh and Hope Atherton were ordering Champagne and mojitos. Model Sasha Pivovarova did an impromptu (free) photo session for the photographers and snapper Roxanne Lowit shot pics of the fake mannequins.