 From the orthodox representationalist point of view, that may seem a dangerous concession. Byrne does hew to the representationalist’s line of supervenience (no qualitative difference without an intentional difference), but if his argument does not rule out mental paint, an anti-representationalist may construct inversion cases such as that of Block’s (1990) “Inverted Earth” (see Section 4.4 below), and argue that the paint is a nonfunctional intrinsic mental feature of the experience given in introspection, which is close enough to a “quale” in Block’s special sense, even if the feature does happen to be reflexively represented by the experience itself.