One thought:

  If a surface has a glow component and this surface is reflected on a mirror,
what should happen?
  a) Only the reflection of the surface glows, not the mirror itself.
  b) The mirror itself starts glowing because of the reflection of the
glowing surface.

  The difference between the two is subtle, but important: If only the
reflection glows, the glowing does not extend outside the mirror surface.
If the mirror surface glows, the glowing extends outside it.

  AFAIK the option a) is the physically correct one. Of course the mirror
just reflects the glowing, it doesn't start to glow itself.
  However, if the glowing is achieved as a 6th color component, what will
happen is the option b) because the mirror will get that 6th component as
well when it reflects the glowing surface. This is a bit unrealistic.
  So I don't know if it would be a good idea.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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