Networking\InitCmsBundle\Menu\AdminMenuBuilder::addIcon PHP Method

    protected function addIcon($item, $icon)
    {
        $icon = array_merge(array('tag' => isset($icon['glyphicon']) ? 'span' : 'i'), $icon);
        $addclass = "";
        if (isset($icon['inverted']) && $icon['inverted'] === true) {
            $addclass = " icon-white";
        }
        $classicon = isset($icon['glyphicon']) ? ' class="' . $icon['glyphicon'] : ' class="fa fa-' . $icon['icon'];
        $myicon = ' <' . $icon['tag'] . $classicon . $addclass . '"></' . $icon['tag'] . '>';
        if (!isset($icon['append']) || $icon['append'] === true) {
            $label = $item->getLabel() . " " . $myicon;
        } else {
            $label = $myicon . " " . $item->getLabel();
        }
        $item->setLabel($label)->setExtra('safe_label', true);
        return $item;
    }