Like a flamingo amid a flock of pigeons, Glam Seamless stands apart from the multitude of monochromatic salons populating New York City’s streets, a fact made obvious even before stepping through the flagship’s door. One glimpse beyond the double-height glass facade reveals a kaleidoscope of rosy hues inspired by the hair extension brand’s signature color: pink. “It’s almost like clothing,” architect Sergio Mannino says of the saturated palette, which Sergio Mannino Studio used to transform what was Pharrell Williams’s decidedly masculine Billionaire Boys Club boutique into a blush-toned sanctuary that is equal parts retail showroom and salon.