SAN FRANCISCO — Walking into the de Young Museum in Golden Gate Park is an energizing experience. The towering walls of the institution’s Herbst Gallery — painted in Benjamin Moore’s “Majestic Violet” — have been hung salon-style, with 15-foot-wide bands of artwork installed closely together. The massive gallery, which consists of a sequence of eight imposing rooms, is filled with 883 works by artists from nine counties surrounding the San Francisco Bay Area. It’s a dazzling tsunami of painting, drawing, printmaking, fiber, photography, sculpture, video, and digital art.