Change background color in MATE

		$this->Editor->setConfig('modifyRowSets',array(&$this,'changeBgColor')); and 

    function changeBgColor($rowSets,$rowInfo,$rowNum)
	{
		$day_diff = strtotime($rowInfo['expiry']) - strtotime(date('Y-m-d'));
		$day_diff = $day_diff / (24*60*60); // difference in days.

	    if( $day_diff < 90 )
	    {
		 // $rowSets['bgcolor'] = '#ffffff';
		    $rowSets['bgcolor'] = 'pink';
		    $rowSets['class'] = 'clickable';
		}
		return $rowSets;
	}