anchor.diff:      if (!hidden) {
         return Card(
           child: Column(
  +          crossAxisAlignment: CrossAxisAlignment.center,
             children: <Widget>[
               ListTile(
                 title: title,
  
positive.code:               ),
              ),
              Row(
                children: [buildBody()],
              ),
              actionButtons != null
  
negative.code:     if (errorText != null) {
        return Text(errorText);
      } else if (isLoading) {
        return CircularProgressIndicator();
      } else {
        return child;
      }
  