For some reason i seem to recall that the light color for the pearl originaly has a sort of purple hue to it. Could this be what he is talking about? I have to admit, my light is just white but i think when i first got it the light was slightly purple/blue?
Here is a pic i found online with the bluish keys...
http://www.ke5ter.com/wordpress/wp-p...7-125708-1.jpg