Full Idea
Personally I favour direct realism regarding secondary qualities, and identify greenness with some complex microphysical property exemplified by green physical objects.
Gist of Idea
I think greenness is a complex microphysical property of green objects
Source
William Lycan (Consciousness [1987], 8.4)
Book Reference
Lycan,William G.: 'Consciousness' [MIT 1995], p.91
A Reaction
He cites D.M.Armstrong (1981) as his source. Personally I find this a bewildering proposal. Does he think there is greenness in grass AS WELL AS the emission of that wavelength of electro-magnetic radiation? Is greenness zooming through the air?