cePixelRatio]);
            pointSize *= 1.25;
            let halfPointSize = pointSize / 2.0;
            indicator.element.style.left = (screenPosition[0] - halfPointSize) + 'px';
            indicator.element.style.top = (screenPosition[1] - halfPointSize) + 'px';
            indicator.element.style.width = pointSize + 'px';
            indicator.element.style.height = pointSize + 'px';
          });
        }

        updateTitle(first = false) {
          if (this.el.title === undefined) return;

    