Question about FloatingTextParticle

with FloatingTextParticle, i was reading through the source code and saw this title thing after text.

PHP:

 /**
  * @param Vector3 $pos
  * @param string $text
  * @param string $title
  */
 public function __construct(Vector3 $pos, string $text, string $title = ""){
  parent::__construct($pos->x, $pos->y, $pos->z);
  $this->text = $text;
  $this->title = $title;
 }

PHP:

Entity::DATA_NAMETAG => [Entity::DATA_TYPE_STRING, $this->title . ($this->text !== "" ? "\n" . $this->text : "")],

I tried adding another string into the floating text particle when spawning it, and nothing changed. Im confused what this "title" does, if anyone knows please reply.

 

Title is the same thing as putting \n within the message

 

i gathered, but it doesn't add any text, only what i enter first