This example displays a world map of countries using the natural Earth projection, rendering each country as a bright green SVG path with black outlines. It fetches geographic data from the world-atlas TopoJSON file via a CDN and converts it to GeoJSON using the `feature` method from topojson. The visualization uses d3.geoPath with a d3.geoNaturalEarth1 projection to generate the paths, and d3.json to load the remote dataset. No interactivity or additional styling is applied beyond the static map rendering.