Using strictly natural dyes, Wolf floods the paintings with cochineal (or carmine) and indigo dyes. The rich dyes are applied liberally onto the canvases, but the colors themselves are imbued with a specific meaning—particularly the cochineal. It is derived from the ground up exoskeletons of female cochineal beetles, and while its color is on the red spectrum, it can also appear as soft lavender, luminous pink, or lively orange. Mayans and Aztecs used the prized cochineal dye for clothing and as war paint thousands of years ago—the Aztec emperor Moctezuma at one time even required individual states to pay him an annual tribute of cochineal dye. Today it is used as a natural colorant in food products.