Twitch Icon from Font Awesome

Hello,

I am looking for an icon that I need for my website.
http://fortawesome.github.io/Font-Awesome/icon/twitch/

I don’t think it’s included in the icons for the theme as far as I can tell. I am a Video Game Livestreamer on Twitch.tv and I need the icon for my visitors to know where the link leads before they click it.

It would also be nice to include it in the Appearance > Highend Theme Options > Social Links as well. Right now it’s just a “link” icon because I’m using the default “Custom Link” for my URL.

Is there a way that I can fix/add that option in my theme?

Thank you!