code: function _suppressScrollShadowsOnAllViews(disable) {
          _.forEach(_views, function (view) {
              if (disable) {
                  ViewUtils.removeScrollerShadow(view.$openFilesContainer[0], null);
              } else if (view.$openFilesContainer[0].scrollHeight > view.$openFilesContainer[0].clientHeight) {
                  ViewUtils.addScrollerShadow(view.$openFilesContainer[0], null, true);
              }
          });
      }
docs: turns off the scroll shadow on view containers so they don't interfere with dragging
  @private
  @param {Boolean} disable - true to disable, false to enable