With this new vocabulary of straight lines and clear glass enhanced with warm, earthy colors, Wright developed a complex language of largely symmetrical pattern over the course of 1900-1910. Sharp geometric forms, especially the rhombus and chevron, ascend on majestic repeated verticals. The windows of the lavish Dana and the Martin houses exemplify this intricate style. By the end of the decade, Wright integrated outside and inside more fully by continuing his window designs into clerestories and skylights, and he began exploring the triangle as the basis of design, as in the celebrated Robie house.