Background & Text Colors of forms

Background & Text Colors of forms

I've searched for an answer to this "simple" matter without sucess. How do I change the background and text colors of my forms to match my website colors?

I only see the ability to change the frame and heading colors so far, but not backgrounds. For example, I would like to have a <black> background of entire form with <white> text and embed this into my existing site. Anyone???

Thanks!