The San Diego Museum of Art's 19th century painting Temple at Mogador by Edwin Lord Weeks was brought to BACC to aesthetically improve the painting. A discolored natural resin varnish both gave a yellow cast to the painting and visually flattened the depth of the composition by reducing the original contrast. In addition, overpaint from an old restoration had discolored, causing areas of the original composition (especially the clouds in the sky) to look murky and incompatible with the original paint. After initial testing, BACC determined the safest, most effective way to remove the discolored varnish and overpaint. After many hours of careful cleaning, the original colors and paint passages of Temple at Mogador were revealed. Most notably, the jewel-like blue of the sky became visible and the original, sophisticated color relationships created depth in the image once again. A reversible, protective coat of synthetic varnish (which will not discolor!) was applied to the surface, and the painting was returned to the San Diego Museum of Art.