text: 
  /*
   * Case reducers
   */
  const resizeUI = function(ui, action) {
      return {
          ...ui,
          windowWidth: action.windowWidth,
          width: action.width
      };
  };
  
  export const uiReducer = function(ui={}, action) {
      switch(action.type) {
          case 'RESIZE_UI': return resizeUI(ui, action);
          default: return ui;
      }
  };
  