Infinity from Marvin now offers dark interiors! This is a black double hung Infinity from Marvin window.

Infinity from Marvin replacement windows - double hung with grids (left) and a large picture window with grids (right). When these windows were installed, Infinity did not make dark interior colors, so we painted them black for our customer - you don't need to paint our windows but you can if you...

Two Infinity from Marvin casement windows in Ebony (black) and one large picture (or fixed) window in Ebony (black).