add this less to extra.less
.p-navEl-link, .menu-linkRow, .offCanvasMenu-link {
&:before {
.m-faBase();
display: inline-block;
margin-right: 5px;
}
&[data-nav-id='home']:before {.m-faContent(@fa-var-home);}
&[data-nav-id='forums']:before {.m-faContent(@fa-var-comments);}
&[data-nav-id='whatsNew']:before {.m-faContent(@fa-var-bolt);}
&[data-nav-id='members']:before {.m-faContent(@fa-var-users);}
&[data-nav-id='xfrm']:before...