Hi,

        I have a dark background theme that I have developed over years
 (initially as a color-themes theme), with a color schema that caters to
 people who are midly color blind lime me[0]. It does define many more
 faces than some of the schemes recently posted, so I am unsure how
 applicable this is. 

        Hope this is helpful

        manoj

[0] http://www.golden-gryphon.com/blog/manoj/blog/2008/05/26/Theming_Emacs/