Biological pigment as the melanins. The third type is the xanthophores which contains yellow pigments in the forms of carotenoids. The various colors are made by the combination of the different layers of the chromatophores. These cells are usually located beneath the skin or scale the animals. There are two categories of colors generated by the cell – biochrome and schematochromes. Biochromes are colors chemically formed microscopic, natural pigments. Their chemical composition is created to take in some color of light and reflect the rest. In contrast, schematochromes (structural colors) are colors created by light reflections from a colorless surface and refractions
The Painted Skin "a typical piece of moral didacticism that denounces sexual promiscuity, extols faithfulness, and endorses belief in karma and retribution." "The Painted Skin" utilises both the "zhiguai" and "chuanqi" styles of writing in bringing out "the ghost's critical and creative writing", whereas the complexity of prose parallels the "cultural ramifications of the ghost." Skin is a major plot device in "The Painted Skin", serving as a "path between the separate worlds of human and animal, or the natural and the supernatural". Reality versus perception of it is another overarching issue; what Wang deems to be a pretty female is in fact