From the Renaissance (Uccello, Ghiberti, Ghirlandaio), through the 18th and 19th centuries (Sir Joshua Reynolds, Delacroix), into the 20th century (Rouault, Chagall), artists have made windows in the style of their paintings. These windows look like paintings but they are windows that respond, to a greater or lesser degree, to the form, purpose, and mood of a building. Over time there have been scattered examples of works painted on small sheets of glass, sometimes assembled with lead, which were not designed to fill window openings. In Germany during the second half of the 20th century, studios began fabricating small panels for display in galleries and museums that were either similar in style to, or details of larger windows. Such panels are generally extensions of an architecturally ac