In 1822, Spode began developing other colors in addition to blue that could withstand high-temperature glost firing. The production of these additional printed colors enabled Spode to expand its line of wares. While not nearly as common as Spode's various blues, these new colors included green, brown, black, and Payne's grey. Although rarely found today, light purple and pink were two later additions. Two-color underglaze printing began in 1824. Spode also employed other methods to add color by first transfer-printing a pattern and then painting in or between the lines of the pattern in other colors. Enameling with other colors and gilded decoration over the glaze were also used to further expand the variety of their offerings.