Is there any option to change the color of sparkline bullet. I am including it like progress bar in a column value.

"completion_percent" => array(

             "label" => "نسبة الإنجاز",
              
             "cssStyle"=>"white-space:nowrap",
             'formatValue' => function($val, $row) {
                $data = $val;
                return sparklines\Bullet::create(array(
                    "data" =>array($data,100),
                    "options"=>array(
                        "Color"=>"green",            //i want it in green color, how to change from blue-red bullet to green-red
                    )
                ));
                
                    
                
            }
 

             
         ),

Thank You. It worked :)