What does the clipped corner in the color picker's sample mean? I've noticed sometimes when using Mac OS X's color picker it has a clipped corner.

What does it mean?
I got an answer over Twitter. If that user posts it here, I'll delete this answer:


  Usually means a sampled colourspace like Device RGB versus Generic RGB. Toggle the colour sliders toolbar button and click the little rainbow drop down to see the various colourspaces.


It came in two tweets, here and here.