Novel thermochromic and/or photochromic compositions are described. The thermochromic
compositions include a thermoset resin, fatty substance, water, and dye, while
photochromic compositions include a benzene derivative and a binder, such as silica
gel. When mixed, the ingredients of the thermochromic and photochromic compositions
form chromic cells with an outer shell comprised of either the thermoset resin
(in the case of thermochromic compositions) or potassium nitrate (in the case of
photochromic compositions). When the chromic compositions are exposed to either
a heat or light stimulus, the chromic cells compress to causing the dye within
the cells to no longer be visible, thereby creating a color-changing effect.