Oh, these temperamental artists! After spending less than one year overseeing the art direction of Chanel’s makeup and watch businesses, Ezra Petronio has left the company. “There was a differing of opinion in the way Chanel and he envisioned the role of developing the artistic image for makeup and for watches,” said a Chanel spokeswoman. “Chanel and he reached an agreement that their paths should separate.” Mr. Petronio had no comment. Chanel had tapped Petronio last fall. He reported ...