The "No Style" theme will inherit its display properties from your web site or blog page. The best approach is to drop it onto your page and correct anything that looks wrong by adding your own CSS rules. It is also the most flexible of the themes because you can add multiple fonts, borders, set text alignment, and control the a:hover and other pseudo classes. If you want more details about customizing your Faves widget then go to http://wiki.faves.com/page/widget.
The Code
Add the following in your HTML where you want the widget to appear