Stained glass in the 13th century flourished as Gothic churches grew in popularity. The immense windows allowed for a more complex design approach. Red and blue were still the main colors of choice, but the backgrounds became darker. The stories became more complex and sequential, with the borders more formal and elaborate. A technique called flashed glass became prevalent during this time. To prevent glass from being opaque, glaziers fused a thin layer of dark colored hot glass to a thick layer of hot clear glass. The stained glass in this historic 19th-century Queen Anne–style home is just stunning.