On Sabily mailing list they link to new unofficial theme for Sabily distro named faiz icon theme. I download and try it. Very beauty icon appearance I got since Sabily not yet update or release new icon theme before. So if you interested you should download this icon theme cause it very suitable to replace the old one.
Here one screenshot of my Sabily desktop using faiz icon theme.
Interested? You can download it from here, http://gnome-look.org/content/show.php/Faiz+icons+theme?content=134653