Look in the css folder - there are some variables there that you can change in the embedded styles. As well, you can link a style sheet (the standalone_style.css) to change pretty much everything. Personally I ended up using the @import command for my style sheet to keep some of the layout out of earlier browsers (NS4 comes to mind).
Look thru the html_wrap templates and the css - all the information you need is there.
Good luck!