 Objections to the transparency thesis typically take the form of counterexamples, mental features of our experiences that can be introspected but allegedly are nonrepresentational. Harman (1990) and Block (1996) speak of “mental paint,” alluding to introspectible intrinsic features of a perceptual representation in virtue of which it represents what it does. Harman precisely denies the existence of mental paint, but Block holds that, in particular, he can introspect the nonintentional, nonfunctional items that he calls “qualia” in a sense quite different from that of sensory qualities. Loar (2003) grants that vision is normally transparent, but argues that we can therapeutically adopt what he calls the “perspective of oblique reflection,” perform a certain imaginative exercise, and thereby come to detect “qualia” in something like Block’s heavily laden sense of that term.