This example shows a simple world map rendered as an SVG, with countries filled in light green and oceans in blue using a Natural Earth projection. The code loads GeoJSON country boundaries from the World Atlas TopoJSON file and converts them into SVG paths using `d3.geoPath` and `d3.geoNaturalEarth1`. It relies on the `topojson.feature` API to extract country geometries, and appends each as a separate path element with a stroke to delineate borders.