This is pretty close to it. I've added an opaque black scale behind each of them and a spotlight instead of area light. Now it looks close, only that in the color frame I cannot add yellow too.
It only seems to work from yellowish green to dark blue.
I've also added a bit of yellow light instead of white light, looks even closer to the actual scales.
Last edited by SilverFeather; 20-04-2013 at 10:20 AM.