The fact that this is the first solo show in the United Kingdom devoted to Hedda Sterne, the inventive Romanian-American painter who died in 2011 at the age of 100, is painful, even if it is unsurprising, given the art industry’s perennial marginalization of pioneering women. Sterne was a vital member of the New York School gang in New York at mid-century, making spectral works, sometimes with spray paint, whose alluring mysteries point the way to contemporary figures like Keltie Ferris and Sterling Ruby. This show highlights pieces she made in the 1960s while in Venice, under the sway of sprawling sunsets and inimitable light of the Most Serene Republic.