This example displays a world map using a natural Earth projection, with each country rendered as a filled green path and the sphere outlined in sky blue. It uses D3 v5’s `geoPath` and `geoNaturalEarth1` projection along with TopoJSON’s `feature` method to convert country boundaries from a remote TopoJSON dataset. The map is drawn as SVG elements onto a fixed 960×500 canvas, and the CSS styles the sphere and country paths for visual distinction.