code: function(id, name) {
      if(!this.config.hoveredColor) return;
      var s = this.selected;
      if(s.id != id || s.name != name) {
        s.id = id;
        s.name = name;
        s.color = this.config.hoveredColor;
        this.st.graph.eachNode(function(n) {
          if(id == n.id) {
            n.setData('border', s);
          } else {
            n.setData('border', false);
          }
        });
        this.st.plot();
      }
    }
docs: adds the little brown bar when hovering the node