message: Use brace initialization for ListBoxItem
diff: @@ -122,7 +122,7 @@ int ListBox::selectionTag() const
  */
  void ListBox::addItem(const std::string& item, int tag)
  {
  - mItems.push_back(ListBoxItem(item, tag));
  + mItems.push_back(ListBoxItem{item, tag});
  _updateItemDisplay();
  }
  