Using ThemeRoller for the rest of my page.

Using ThemeRoller for the rest of my page.

I will apologize in advance here.  I am real new to web development (like four of weeks).  I just have a question. 

I really like the ThemeRoller and what it does for the widgets.  Is there a good way or design pattern for me to carry some of the theme stuff (ex. colors, look and feel) over to the non-widget side of the page?  Is it pretty much just opening up the jquery-ui-1.8.2.custom.css file and picking it apart?  I was hoping for an easier way.

I have been wrestling with CSS for weeks now and my pages look like a preschooler did them in crayon.  It would be nice for them to match the nice themes of the JQuery UI widgets I am using.