{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map visualizes countries colored by their economy classification, using a spectral color scale to differentiate income groups. The visualization displays country names and classifications on hover via tooltips, with a legend showing the ordinal color mapping. Built with D3 v5, the example uses `geoNaturalEarth1` projection and `geoPath` to render world geography from TopoJSON data, while `scaleOrdinal` with `schemeSpectral` assigns colors. The interactive zoom feature uses `zoom`, and a custom `colorLegend` function draws the legend with SVG circles and text.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2a478344b1084e0e9c6c7c04950fde5e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}