Is the dispersal of the pigment in all of the chromatophores uniform?

No, the dispersal of pigment in chromatophores is not uniform. Different types of chromatophores, such as melanophores, erythrophores, and xanthophores, contain various pigments and can expand or contract in response to environmental stimuli or physiological changes. This selective dispersal allows for dynamic color changes in organisms, which can serve purposes like camouflage, communication, or temperature regulation.