You could just set your web browser to override the color scheme of every page it displays anyway. I didn't even realize anyone was using different colors here, as my computer is set to force high contrast, so all my web pages use bright green text on a black background.

http://smg.photobucket.com/albums/v3...SEMembers1.png

That's the way everything looks on my computer. I did it to stop the migraines of trying to read text offa lit lightbulb (since a bright white background with dark text has that effect), and because one forum I was on did an April Fool's joke of setting the entire forum to a bright pink Princess Peach theme with bright yellow text.

FireFox lets you do it in Tools -> Options -> Content -> Colors. You can specify colors to use for pages, and force the browser to enforce them, which will make all posts the same color if they bother you.