Answer
Contrary to popular belief, Diaghilev did not contribute directly to the décor of his ballets. Instead, he meticulously selected renowned artists and designers, such as Picasso, Benois, and Bakst, to create visually captivating sets and costumes that aligned with his artistic vision. This collaborative approach elevated the overall aesthetic of his productions and made the Ballets Russes a pioneering force in the world of stage design.