anchor.diff:      if (errorText != null) {
         return Text(errorText);
       } else if (isLoading) {
  -      return CircularProgressIndicator();
  +      return Container(
  +          height: 224, width: 224, child: CircularProgressIndicator());
       } else {
         return Container(
  -        constraints: BoxConstraints(maxHeight: 224),
  +        constraints: BoxConstraints(maxHeight: 224, maxWidth: 406),
           child: child,
         );
       }
  
positive.code:   Widget build(BuildContext context) {
      if (!hidden) {
        return Card(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            children: <Widget>[
  
negative.code:     });
      return DropdownButton(
        items: menu,
        underline: Container(),
        icon: Icon(Icons.more_vert),
        onChanged: (String selectedMenuItem) =>
            onMenuItemPressed(selectedMenuItem),
      );
  