code: function () {
          var me = this, ret = {
              minWidth: 20,
              width: Ext.themeName === 'neptune' ? 70 : 60,
              items: [],
              enableOverflow: true
          };
  
          Ext.each(this.quickStart, function (item) {
              ret.items.push({
                  tooltip: { text: item.name, align: 'bl-tl' },
                  //tooltip: item.name,
                  overflowText: item.name,
                  iconCls: item.iconCls,
                  module: item.module,
                  handler: me.onQuickStartClick,
                  scope: me
              });
          });
  
          return ret;
      }
docs: This method returns the configuration object for the Quick Start toolbar. A derived
  class can override this method, call the base version to build the config and
  then modify the returned object before returning it.