Installation view of Spilling Over: Painting Color in the 1960s (Whitney Museum of American Art, New York, March 29-August 2019). From left to right: Morris Louis, Gamma Delta, 1959-60; Frank Stella, Gran Cairo, 1962; Miriam Schapiro, Jigsaw, 1969; Alvin Loving, Septehedron 34, 1970; Bob Thompson, Triumph of Bacchus, 1964; Helen Frankenthaler, Orange Mood, 1966. Photograph by Ron Amstutz