Pick your preferences on shower kind, tile pattern, color, and accessories to build the new shower you’ve dreamed of. The metallic-and-marble shower door and self-importance on this Steven Gambrel-designed Manhattan home are custom-designed, giving “modern” a private edge. “Modern” is practically spray painted on this guest bath in a Manhattan loft. The tub and sink fittings are by Barber Wilsons & Co. and the paint-on-mirror artwork is by Rashid Johnson.