This example displays a world map using a natural Earth projection, with countries filled in yellow and oceans depicted in blue. It relies on D3 v5’s `geoPath` and `geoNaturalEarth1` to project geographic coordinates, while the TopoJSON library’s `feature` method extracts country boundaries from the World Atlas dataset. The SVG rendering includes a spherical outline and country paths, with a simple black stroke applied to each nation.