I'm using the blackdiamond style, and I'd like to change the colors of both visited and non-visited <a> hyperlinks inside comments, which are currently the default purple and blue of the browser.
I've looked at the CSS files but I'm not sure where is the best place to add this definition : in the formatter extension's style.css, or in one of the 7 CSS files in the blackdiamond style ?
If you are using FF as your browser, I would suggest installing the web developer toolbar so that you can view style information. That will help you a lot.