 One form has links to action-based theories of perception, as developed principally by the psychologist, J. J. Gibson. A leading example is the theory defended by Evan Thompson, The Ecological View of Colors. On this account, colors are taken to be dependent, in part, on the perceiver and so are not intrinsic properties of a perceiver-independent world. Being colored, instead, is construed as a relational property of the environment, connecting the environment with the perceiving animal. In the case of the color of physical surfaces, “being coloured corresponds to the surface spectral reflectance as visually perceived by the animals” (Thompson 1995: 240; see also Ch. 5, pp. 242–250). 