color de botón Sweetalert

swal({   
title: "Are you sure?",   
   text: "You will not be able to recover this imaginary file!",   
   type: "warning",   
   showCancelButton: true,      
   confirmButtonColor: "#DD6B55",   
   confirmButtonText: "Yes, delete it!",   
   cancelButtonText: "No, cancel plx!",   
   closeOnConfirm: false,   
   closeOnCancel: false,
   customClass: "Custom_Cancel"
}, 
function(isConfirm){   
   if (isConfirm) {     
      swal("Deleted!", "Your imaginary file has been deleted.", "success");   
   } else {     
      swal("Cancelled", "Your imaginary file is safe :)", "error");   
   } 
});
Yousef Qaoud