How can I change the default stars style with something else?
It's very easy. First, go to the Ratings settings. Then, on the Rating-Widget options, select the "Custom" button in the color section, and follow the instructions which will appear in the new window.
This indicates that you can change the default stars to something else (perhaps something custom). Is there an easy way to do this (from the front end) or will it require editing the CSS or a PHP file?