anchor.diff:    Widget build(BuildContext context) {
       return MaterialApp(
         title: 'Startup Name Generator',
  +      theme: ThemeData(primaryColor: Colors.white),
         home: RandomWords(),
       );
     }
  
positive.code:   }
  
    Widget _buildRow(WordPair pair) {
      return ListTile(
        title: Text(
          pair.asPascalCase,
          style: _biggerFont,
        ),
      );
    }
  
  
negative.code: 
  class RandomWordsState extends State<RandomWords> {
    final _suggestions = <WordPair>[];
    final _saved = Set<WordPair>();
    final _biggerFont = const TextStyle(fontSize: 18.0);
  
    Widget _buildSuggestions() {
  