Collin Parson's day job is as the visual-art director at the Arvada Center for the Arts and Humanities, but he moonlights — emphasis on lights — as an artist who uses light as a medium in his strikingly bare-bones wall sculptures. Last summer, Parson mounted a survey of sorts called Reworked: The Collin Parson Experience, which focused on his pierced boxes with internal light escaping through various slits and openings. These sculptures are strikingly simple, being merely boxes with lights in different colors. But their effects were great, even in the daytime, when the lines and bars of light in the boxes gently glimmered. But at night, with the gallery's lights out, it was out of this world, looking something like a minimalist disco.