custom fivestar icons
When I added my custom fivestar, I saw a similar issue, you do not have your CSS listed  but check to see if in the css you copied, check to see if all instances of the .fivestar- class has your custom star name after the hyphen.  i.e. .fivestar-bone_stars
Also of note, I answered this on another person's post here is a really nice tutorial on adding custom stars using file_scan_directory so that all you have to do is add a new folder and update the css and the hook will automatically pick it up.


Custom fivestar widget does not display custom icons