Hello, color! This season, Mark Fast’s figure-hugging knitted creations came in lilac, magenta and mint, as well as smoky blue and black. The Canadian designer cited “hot Parisian nights” as a key influence, and the glamour of French discothèques was seen in his pieces with long, exaggerated fringe. Though it may be an impractical choice, it will certainly look good on the dance floor. What felt freshest was a loosening of Fast’s silhouette, seen in a silvery T-shirt dress — slightly longer in the back — in a light-as-air sheer knit. It was sexy without being obviously so.