I have looked at the thread post : http://cutesoft.net/forums/thread/1836.aspx
but it does not resolve my problem.

I have an external stylesheet that has:
BODY     { background: #6E1801 url(/images/common/background-tile.jpg);
           background-repeat: repeat-x;;
}

Because of this, the entire background in the Editor window is maroon. The body of the website needs this color and I also need the other styles in the same stylesheet. How do I override this style (while including the stylesheet) so the Editor window has a white background and is easy to read.

Any help would be really helpful.

Thanks.