This example displays a world map with countries filled in light green against a blue spherical backdrop, rendered as SVG paths using D3.js v5 and TopoJSON. It uses `d3.geoNaturalEarth1` for the projection, `d3.geoPath` to generate country outlines, and fetches geographic data from the World Atlas TopoJSON source (110m resolution). The code appends a sphere path first, then loads and draws country features, with stroke opacity creating thin borders.