During a four-day Festival of the Arts, Oct. 5-8, Princeton University celebrated the opening of the new Lewis Arts complex with a bonanza of events, open to the public. More than 100 events across arts genres took place in more than 30 venues of every shape and size, from the expansive University Chapel to a tiny “Theatre for One” mobile unit, from a high-tech black box theater to a sun-drenched outdoor plaza.