code: function handleMouseOut(e, d) {
              overlay.style('display', 'none');
              verticalMarkerLine.classed('bc-is-active', false);
              verticalMarkerContainer.attr('transform', 'translate(9999, 0)');
  
              dispatcher.call('customMouseOut', e, d, d3Selection.mouse(e));
          }
docs: MouseOut handler, hides overlay and removes active class on verticalMarkerLine
  It also resets the container of the vertical marker
  @private