Answer: Abstract art was the most common theme
Explanation:
Abstract expressionism, Abstract photography, Art Brut, Action Painting, Pop Art, Capitalist Realism, Conceptual Art, Earth Art, Feminist art were movements that have flourished after World War II.
Artist was using many new styles such as action painting where an artist would spontaneously throw or flung paint, they were also using more bright colors and the abstract art was the most common theme in postwar art.
