 One attempt to account for the variation in these cases is to invoke Fregean modes of presentation of the constant features. In the case of color, such a Fregean proposal would say that experience represents the brownness of the table under modes of presentation that vary with the variations in lightness and darkness. The appeal of this strategy is that it does not treat the constant property and varying ones on a par: the constant feature is represented at the level of reference; the varying features at the level of sense. The table does not look to be both brown and shiny white or grey; it looks to be brown, by looking shinier or brighter in some parts than it does in others.