English Gothic stained glass windows were an important feature of English Gothic architecture, which appeared between the late 12th and late 16th centuries. They evolved from narrow windows filled with a mosaic of deeply-coloured pieces of glass into gigantic windows that filled entire walls, with a full range of colours and more naturalistic figures. In later windows, the figures were often coloured with silver stain, enamel paints and flashed glass. Later windows used large areas of white glass, or grisaille, to bring more light into the interiors.