anchor.diff:  enum StockMode { optimistic, pessimistic }
   
   class StocksApp extends App {
  -
  -  // static final Style _searchBarStyle = new Style('''
  -  //   background-color: ${Grey[50]};''');
   
     // static final Style _titleStyle = new Style('''
     //   ${typography.white.title};''');
  
positive.code: 
    // TODO(abarth): Should we factor this into a SearchBar in the framework?
    UINode buildSearchBar() {
      // return new StyleNode(
      //   new ToolBar(
      //     left: new IconButton(
      //       icon: 'navigation/arrow_back_grey600',
      //       onGestureTap: _handleSearchEnd),
      //     center: new Input(
      //       focused: true,
      //       placeholder: 'Search stocks',
      //       onChanged: _handleSearchQueryChanged)),
      //   _searchBarStyle);
    }
  
    void addMenuToOverlays(List<UINode> overlays) {
  
negative.code: // import 'package:sky/framework/components2/floating_action_button.dart';
  // import 'package:sky/framework/components2/icon.dart';
  import 'package:sky/framework/components2/icon_button.dart';
  import 'package:sky/framework/components2/menu_divider.dart';
  import 'package:sky/framework/components2/menu_item.dart';
  import 'package:sky/framework/components2/input.dart';
  // import 'package:sky/framework/components2/modal_overlay.dart';
  // import 'package:sky/framework/components2/popup_menu.dart';
  // import 'package:sky/framework/components2/radio.dart';
  