Theater artists and their families and supporters stand with lights outside the Geary Theater in San Francisco, Calif., on Thursday, January 19, 2017. All across the country the night before the inauguration, theater artists are gathered to "create light" in dark times ahead, standing in solidarity around the values of inclusion and compassion. The event gets its name from the theater tradition of a ghost light, where theaters leave a light on in an otherwise completely dark theater, originally for superstitious reasons; now the term applies as a safety measure.