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GeoffC · 03-06-2009, 08:46 AM

As a pigment, generally green and red are the same when defined in grey scale . not too sure about light, though.

Presumably you view traffic lights in terms of the position of these colours...

03-06-2009, 08:46 AM	#55
GeoffC Chocolate Grasshopper ... Posts: 27,599 Karma: 20821184 Join Date: Mar 2008 Location: Scotland Device: Muse HD , Cybook Gen3 , Pocketbook 302 (Black) , Nexus 10: wife has PW	As a pigment, generally green and red are the same when defined in grey scale . not too sure about light, though. Presumably you view traffic lights in terms of the position of these colours...