[NTG-context] Wiki page on color

Hi, I am doing a major overhaul of the wiki page on colors. The current page[1] had become tangled up with time and I think that it is better to reorganize the information. Since this is a major change, rather than simply editing the wiki page, I have created a new page[2]. Please take a look at both pages: [1]: http://wiki.contextgarden.net/Color [2]: http://wiki.contextgarden.net/Color/sandbox If you think that there is information on the original page that needs to go to the new page, move it there. After a few days, I'll move page [2] to page [1]. Aditya