From The Metropolitan Museum of Art:
Bold color reentered Braque’s and Picasso’s work in spring 1912, partly in response to the Italian Futurists’ brilliantly hued canvases, which debuted in Paris earlier that year. Picasso used industrial paint to reproduce the cover of a pamphlet, “Our Future Is in the Air,” issued by the Michelin tire company to raise support for the government’s aviation program. The blue, white, and red stripes refer to the French flag. Cubists enjoyed aviation references because they viewed their art as similarly groundbreaking. As an inside joke, Braque and Picasso compared their creative partnership to that of the Wright brothers.