This visualization displays a world map rendered as an SVG using a natural Earth projection. It shows landmasses in dark blue, graticules and country borders in contrasting teal, and the ocean sphere in light green. The map draws from world-atlas TopoJSON data, converting it with `topojson.feature` and `topojson.mesh`. Built with React and D3 v5, the code applies `d3.geoNaturalEarth1` and `d3.geoPath` to generate the geographic paths and graticule lines.