  Because the example concerns color qualia, this sort of inverted qualia scenario is usually described as a case of “spectrum inversion”. (Note that the 180° inversion takes unique hues to unique hues, and binary hues to binary hues. An inversion scenario produced by a rotation of 45° would take the unique hue red to the binary hue orange; and so presumably would be behaviorally detectable: see subsection 2.3.1 below.)