Arena Stage’s adaptation of Red, about the painter Mark Rothko in his later, angrier years, steadies an otherwise fast-moving script. It runs through March 11.

The National Gallery of Art’s Tower on the fourth floor — arguably the museum’s most hallowed space — recently welcomed a new tenant: Mark Rothko. Long the (beloved) residence of the museum’s collection of Matisse cutouts, the bird’s nest gallery now houses a rare display of Rothko’s black paintings.