[CSS MQ] high-contrast-screen, accessibility

Is it possible to add in media queries [1] value that will 
indicate that UA is running with high-contrast-screen settings?

I think that it should be: 
high-contrast,  high-contrast-black and high-contrast-white
media types/

In practice high-contrast with support of 
system colors in CSS is enough but we observed 
situations when separate tweaking for high-contrast-black 
and high-contrast-white would be desirable. 

Andrew Fedoniouk.
http://terrainformatica.com

[1] http://www.w3.org/TR/css3-mediaqueries/