code: public function addIcon($row, $label)
  	{
  		$image = 'articles';
  		$time = Contao\Date::floorToMinute();
  
  		$unpublished = ($row['start'] != '' && $row['start'] > $time) || ($row['stop'] != '' && $row['stop'] < $time);
  
  		if (!$row['published'] || $unpublished)
  		{
  			$image .= '_';
  		}
  
  		return '<a href="contao/main.php?do=feRedirect&amp;page='.$row['pid'].'&amp;article='.($row['alias'] ?: $row['id']).'" title="'.Contao\StringUtil::specialchars($GLOBALS['TL_LANG']['MSC']['view']).'" target="_blank">'.Contao\Image::getHtml($image.'.svg', '', 'data-icon="'.($unpublished ? $image : rtrim($image, '_')).'.svg" data-icon-disabled="'.rtrim($image, '_').'_.svg"').'</a> '.$label;
  	}
docs: Add an image to each page in the tree
  
  @param array  $row
  @param string $label
  
  @return string