Mill Valley is not a typical destination for contemporary art, but neither does it seem like a totally unexpected place to find a gallery. Maybe it all depends on where you’re coming from. For locals, it makes perfect sense to stop by Anthony Meier’s gallery on the leafy, pedestrian-friendly block of Throckmorton Avenue. For those of us coming from elsewhere, the spare white storefront currently filled with rainbow-hued art offers a narrow jolt of visual excitement against a backdrop of weathered wooden shingles and brick facades.