lapseRecursively" class="fa fa-minus fa-lg tooltip"><span class="tooltiptext">Collapse selected</span></b>
        <b id="expandRecursively" class="fa fa-plus fa-lg tooltip"><span class="tooltiptext">Expand selected</span></b>
        &nbsp;
        <b id="randomizeLayout" class="fa fa-gavel fa-lg tooltip"><span class="tooltiptext">Redraw with randomized layout</span></b>
        &nbsp;
        <b id="saveImage" class="fa fa-camera fa-lg tooltip"><span class="tooltiptext">Save as image</span></b>
        &n