message: Use packed parameters when drawing empty list box
diff: @@ -270,8 +270,9 @@ void ListBox::update()
  if (empty())
  {
  - r.drawBoxFilled(rect(), 0, 0, 0);
  - hasFocus() ? r.drawBox(rect(), 0, 185, 0) : r.drawBox(rect(), 75, 75, 75);
  + r.drawBoxFilled(rect(), NAS2D::Color::Black);
  + const auto boxColor = hasFocus() ? NAS2D::Color{0, 185, 0} : NAS2D::Color{75, 75, 75};
  + r.drawBox(rect(), boxColor);
  return;
  }
  