This example displays a world map rendered as an SVG, with countries filled in orange against a sky-blue sphere. The visualization uses D3 v5’s `geoEquirectangular` projection and `geoPath` to draw country outlines, while TopoJSON’s `feature` method converts the world-atlas countries dataset into geographic features. Hovering over a country changes its fill to red via CSS, and the map includes a black stroke with partial opacity for borders.