message: Inline and remove overlay color lookup helper functions
diff: @@ -60,26 +60,14 @@ namespace {
  NAS2D::Timer throbTimer;
  - const NAS2D::Color& overlayColor(Tile::Overlay overlay)
  - {
  - return OverlayColorTable.at(overlay);
  - }
  -
  -
  - const NAS2D::Color& overlayHighlightColor(Tile::Overlay overlay)
  - {
  - return OverlayHighlightColorTable.at(overlay);
  - }
  -
  -
  const NAS2D::Color& overlayColor(Tile::Overlay overlay, bool isHighlighted)
  {
  if (isHighlighted)
  {
  - return overlayHighlightColor(overlay);
  + return OverlayHighlightColorTable.at(overlay);
  }
  - return overlayColor(overlay);
  + return OverlayColorTable.at(overlay);
  }
  