{"version":"1.0","type":"rich","title":"Fork of React & D3 Starter","description":"This example shows a world population map where individual countries are shaded with a blue sequential color scale, and hovering over a country reveals its name and population in millions via a tooltip. It renders a Natural Earth projection using `d3.geoPath` and `d3.geoNaturalEarth1`, with geographic data loaded from TopoJSON via `topojson.feature` and country names from a TSV file. The code uses `d3.scaleSequential` with `d3.interpolateBlues` to map population values to fill colors, and SVG paths for country boundaries.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/72f0c587148c4d6cb06379323de9d34d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}