For those interested I was able to sort of achieve this, it’s not intelligent for what page you’re on, but for most, it will do the trick. Change the (2) to whatever position your forum button is
.b-header .nav-pills > li:nth-child(2) {
background-color: #35373e;}
and if you would like the pill to extend to the top and bottom
.b-header .nav-pills>li>a {
padding: 13px 12px;
}
.b-header .contents {
margin: 0px !important;
}
This achieves…