This example displays a world map rendered in SVG using D3.js and TopoJSON. It shows country boundaries filled in yellow against a sky-blue spherical backdrop, created with `d3.geoNaturalEarth1` and `d3.geoPath`. The code fetches GeoJSON data from a GitHub gist, converts it via the `feature` method from TopoJSON, and appends each country path to the SVG. The map’s styling is controlled through CSS classes for the sphere and countries, with a maroon stroke applied to borders.