As long as people can change the style as they prefer, and have it saved with cookies or login settings (I don't know how much this forum/bbs software can do that), and a decent style is available (the original isn't bad, but I went with the blue for myself). If I wrote forum software, I would include the ability for users to tweak the hue, saturation, and luminance of the colors present with any style that is provided. It would be easy with stylesheet classes. A few things might need the colors in images, and that could require dynamic image generation on the server (but I've done that, before, too).
