docs: public String getWidgetDefaultConfiguration(String name) {
  
          if (m_registeredWidgets.containsKey(name)) {
              return m_widgetDefaultConfigurations.get(name);
          }
          // not found by class name, look up an alias
          String className = m_widgetAliases.get(name);
          if (className != null) {
              return m_widgetDefaultConfigurations.get(className);
          }
          return null;
      }