>  I thought the whole idea of gamma correction was that you *don't* have
> to worry about whether <.75, .75, .75> "looks right". In other words,
> <.75, .75, .75> should always look the same in all systems, assuming those
> systems have a proper gamma correction set up.

POV works in linear colour space though, not gamma corrected.  So when you 
supply colours or textures to POV, you need to inverse gamma correct them 
first, to get correct results.

IMO POV should have an option to do this automatically, as people are used 
to knowing what <0.75,0.75,0.75> looks like on their desktop (eg by using 
Paint or HTML).  <0.75,0.75,0.75> in a POV colour statement or a texture 
used by POV means something different currently.

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