Based on the small prints that Mrs. Patmore, Daisy, Ivy, and other house staff wear. These are classic designs, and although they existed for some time prior, they became popular in the late 19th century. They're unassuming prints, which add a little color to what would otherwise be a life of uniformed servitude, which is otherwise so monochromatic. Tiny prints, Little plaids, stripes. Not overly bold; the colors reflect the Downstairs lifestyle in that they have their own somewhat muted sensibility.