Therma-Tru Smooth-Star fiberglass door painted Sunset (SW6626). Smooth-Star doors are ready-to-paint and feature crisp, clean contours. Door features energy-efficient Low-E glass with grilles between glass (GBGs) in White to complement window grid patterns. GBGs are thermally sealed between two panes of tempered glass and offer a solution for homeowners who want a low maintenance divided lite look.