{"version":"1.0","type":"rich","title":"Choropleth Graph","description":"A choropleth map of world countries, colored by economic classification using an ordinal color scale from `d3.scaleOrdinal` and `schemeSpectral`. Hovering highlights a country and reveals a tooltip with its name and economy type. The map uses `d3.geoNaturalEarth1` projection and `d3.geoPath` for rendering, with zoom support via `d3.zoom`. Data comes from World Atlas TopoJSON and TSV files; a custom color legend shows the ordinal categories.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7e0bdaef5e5247b5afcfe0fb8b2775d6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}