> This may even be true (in my experience) with any color picker external to 
> POV-Ray.

Yes mine too, actually I first came across this (a long time ago) when 
trying to put a POV generated file into a power point presentation.  The 
colour of the main object in the POV file was meant to exactly match some 
corporate colour already used in the PPT (as RGB of course).

> Bearing that in mind, I wrote a little macro using your line of code:
>
> #macro ColorCorrect(ColorIn)
>  rgb <pow(ColorIn.red/255, 2.2), pow(ColorIn.green/255, 2.2), 
> pow(ColorIn.blue/255, 2.2)>
> #end

That's a neat idea.  I think there was a discussion a while back about 
having another SDL keyword to specify that literal colours and image maps 
are to be interpreted as sRGB rather than linear values.

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