anchor.diff:                         href="#graph-viewer"
                          data-toggle="tooltip" 
                          data-placement="right" 
  -                       data-original-title="Graph"><i class="fa fa-arrows-alt fa-3x"></i></a>
  +                       data-original-title="Graph"><i class="fa fa-connectdevelop fa-3x"></i></a>
                   </li>
                   <li>
                       <a ng-click="setActive('nav-menu-left-genetic-statistics');" 
  
positive.code:                        data-placement="right" 
                         data-original-title="Graph Statistics"><i class="fa fa-bar-chart-o fa-3x"></i></a>
                  </li>
              </ul>
          </div>
      </nav>  
  
negative.code:         <div class="sidebar-collapse">
              <ul class="nav" id="main-menu">
                  <li>
                      <a ng-click="setActive('nav-menu-left-top');" 
                         id="nav-menu-left-top" 
                         class="nav-menu-left active-menu" 
  