This example shows a world map rendered as an SVG, with countries filled in light green and oceans depicted as a blue sphere. It uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to draw both the sphere outline and country boundaries. Country data comes from the world-atlas TopoJSON file, which is parsed with the `feature` function from topojson. The map is static, with no interactions or transitions.