Might want to check out the xenForo logo, and see if that can be changed (if it's within the license)... to a Stratics logo. So when links to the forum are posted on Facebook, the link will display a Stratics logo rather than a xenForo logo. Here's an example...
https://www.facebook.com/GameXbar/posts/370950662926556
http://community.stratics.com/styles/default/xenforo/logo.og.png
https://www.facebook.com/GameXbar/posts/370950662926556
http://community.stratics.com/styles/default/xenforo/logo.og.png