code: function _updateOverwriteLabel(event, editor, newstate, doNotAnimate) {
          if ($statusOverwrite.text() === (newstate ? Strings.STATUSBAR_OVERWRITE : Strings.STATUSBAR_INSERT)) {
              // label already up-to-date
              return;
          }
  
          $statusOverwrite.text(newstate ? Strings.STATUSBAR_OVERWRITE : Strings.STATUSBAR_INSERT);
  
          if (!doNotAnimate) {
              AnimationUtils.animateUsingClass($statusOverwrite[0], "flash", 1500);
          }
      }
docs: Update insert/overwrite label
  @param {Event} event (unused)
  @param {Editor} editor Current editor
  @param {string} newstate New overwrite state
  @param {boolean=} doNotAnimate True if state should not be animated