“Take a Banana” is, however, a willfully upbeat show; whenever it gets too dark, Ross detonates another joke. In his banana-yellow suit (by Toni-Leslie James), he takes us on a tour of his family and childhood, with the help of old photos and home videos projected inside the many large, ornate frames on Beowulf Boritt’s handsome, curve-walled set. (Projection design is by Stefania Bulbarella.)