{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map visualizes global income groups by coloring countries with a spectral color scale. It uses `d3.geoNaturalEarth1` projection and `d3.geoPath` to render the world map from TopoJSON data loaded via `world-atlas`. The map supports zooming through d3’s zoom behavior, and an accompanying legend built with `colorLegend` displays the ordinal scale values. Country data is joined from a TSV file, and hovering highlights each nation while a tooltip title shows its name and income group.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ea709f24a5ff43629b8c0006d9d299de?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}