I don't know how to style the results directly, but I've been able to style the output indirectly using a bit of jQuery. It seems to work pretty well. When catlist renders, it comes out as a
<ul> list. You can wrap that list with a
<div> element and specify the class, like this:
Then you can write some jQuery code to traverse down to the "myclass" section and then style the elements to whatever you want.
jQuery('div.myclass ul').css('list-style','disc outside url("/wp-content/media/my-bullet-image.gif")').css('margin-left','15px');
The above line styles the list of pages with a custom outer-bullet and a left padding of 15px.
If you need more specific information, send me an email. (dan-at-ruysdaeldesign-dot-com)