Novanius utilizes the power of BBCode to allow users to make their posts look quite special and very legit. Chances are you've seen the cool users do it. Here is how you can do it too!
When you're writing a post, you'll notice many buttons along the top
When you reach a point in which you want to specialize a word or phrase, click the button. That will insert the tags and place your cursor in-between them. Place whatever text you want to receive the affect in the tags
Anything in between those tags will receive the effect. For color and font size, you will also have to specify the font size and the color.
Using special text will greatly increase the possibilities and qualities in your post if used properly. So if you want to add a little magic, use the BBCode once in awhile!