message: Fix warning signed/unsigned compare in `ListBox`
diff: @@ -296,7 +296,7 @@ void ListBox::update()
  }
  // display actuals values that are meant to be
  - for(int i = 0; i < (int)mItems.size(); i++)
  + for(std::size_t i = 0; i < mItems.size(); i++)
  {
  itemY = rect().y() + (i * mLineHeight) - mCurrentOffset;
  if (i == mCurrentHighlight)
  