For 10 points, name this property of an object, which is a secondary quality, unlike shape.
In a David Lewis article titled Naming these things, he says that a theory of them must be materialistic and commonsensical and must reject "folk theories" of them. A thought experiment used to support epiphenomenalism considers a person who cannot perceive these things, but then gains that ability; that is Frank Jackson's (*) "Mary's Room". In the "New Riddle" of induction, Goodman coins portmanteau words to describe objects that change this property at a given time. In another work, an example of one of these was used to offer a counterexample to the copy principle, and to show that humans can form ideas without experience; that is Hume's "missing shade" of one. For 10 points, name this property of an object, which is a secondary quality, unlike shape.
In a David Lewis article titled Naming these things, he says that a theory of them must be materialistic and commonsensical and must reject "folk theories" of them.
color [accept specific colors too, like blue]