code: function () {
          var me = this, cfg = {
              app: me,
              taskbarConfig: me.getTaskbarConfig()
          };
  
          Ext.apply(cfg, me.desktopConfig);
          return cfg;
      }
docs: This method returns the configuration object for the Desktop object. A derived
  class can override this method, call the base version to build the config and
  then modify the returned object before returning it.