private void Start()
 {
     if (saveButton)
     {
         saveButton.onClick.AddListener(mapTileManager.SaveTextureAllTiles);
         saveButton.onClick.AddListener(SetTitleText);
     }
     markerTrackable = imageTarget.transform.parent.gameObject.GetComponent <MarkerTrackableEventHandler>();
 }
 private void Start()
 {
     markerTrackable = imageTarget.transform.parent.gameObject.GetComponent <MarkerTrackableEventHandler>();
 }