Echoing what X-wing said here... that is basically why it didn't work. I never actually thought it would, but as with many things... never hurts to TRY something.
Or, hmm I guess that means DO something... that doesn't necessarily work... heheh
But I think this is a cool idea--I'm sure there might someday be a way to do what you're thinking.
Perhaps an array of Lux Rebels one day? And probably isolated an outer ring of (say red) with its "own" diffuser... and then an INNER ring of (say green). ANyhow.
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