Method getExtInfo

public static function getExtInfo()
{
    PluginHelper::importPlugin('phocatools');
    $results = Factory::getApplication()->triggerEvent('onPhocatoolsOnDisplayInfo', array('NzI5NzY5NTcxMTc='));
    if (isset($results[0]) && $results[0] === true) {
        return '';
    }
    return '<div style="display:block;color:#ccc;text-align:right;">Powered by <a href="https://www.phoca.cz/phocagallery">Phoca Gallery</a></div>';
}