After 1945 the integrational factor of European art had decreased. This was again followed by artists turning away from traditions and pure figural painting in the post-war years. In Paris a new art movement emerged that should become known under the name Art Informel. It became manifest in a gesticulatory, mostly expressive and spontaneous painting style. The artists of this movement confirmed Cézanne's assumption that color was the only subject of painting. The exponents of Art Informel clearly oppose geometric abstraction and, as a result, reject predetermined forms and strict composition rules. They try to express themselves by using made up signs or rhythm and structure - in short, by implementing an individual gesture. Wols, Hans Hartung, Karl Otto Götz and Emil Schumacher are considered to be prominent representatives of German Art Informel.