message: Use std::size_t type for NO_SELECTION
diff: @@ -19,7 +19,7 @@ namespace constants
  const int RESOURCE_BOX_WIDTH = 200;
  - const unsigned int NO_SELECTION = std::numeric_limits<unsigned int>::max();
  + const auto NO_SELECTION = std::numeric_limits<std::size_t>::max();
  const unsigned int MINIMUM_DISPLAY_ITEMS = 5;
  