This example shows an interactive world map built with D3.js, displaying country boundaries as SVG paths colored light green, with a blue sphere background. The map supports zooming and panning through a d3.zoom behavior, and hovering over a country turns it red. It uses d3.geoNaturalEarth1 for projection and d3.geoPath for generating paths from TopoJSON data loaded from the world-atlas package, with country names joined from a TSV file and displayed as tooltips via SVG `<title>` elements.