Roni Stretch’s conceptual trompe l’oeil paintings explore the possibilities of illusion and the vagaries of perception. In his best-known series, “Roma,” oil paintings range from white to black and resemble crumpled paper at their most detailed, and pure monochromes at their most subtle. It is up to the viewer to discern Stretch’s suggestions of depth and texture, and to decide whether to read his paintings as abstract or representational. In another series, Stretch paints photorealistic portraits and then covers them in opaque layers of paint. Ghostly suggestions of figures register through the monochromatic shrouds and engage visual contradictions, such as abstraction versus figuration and clarity versus obscurity.