 As representationalism has been defined here, it does not require the transparency thesis. Representationalism itself is a claim only about sensory qualities, while transparency is about features of experience more generally. Even if transparency fails and there are introspectible nonrepresentational features of experiences, those features are presumably not sensory qualities. (Though some of the foregoing examples have also been used against representationalism; see Section 4.) Of course, if representationalism should be construed as applying to features of experience more broadly, then the existence of some such features may be troublesome for the view so construed; but they may be acceptable to the materialist, e.g., because they are functional.