Hello,
We discussed your suggestion, but it was inappropriate to implement one more font file just for 2 icons. We haven’t received any queries concerning this issue from other clients.
If it’s a big necessity for you then you can select icons variants for grid/list http://fortawesome.github.io/Font-Awesome/3.2.1/icons/ and we’ll enable it for you.
Thank you.
Regards,
Eva Kemp.