{"version":"1.0","type":"rich","title":"Swanton Choropleth Map","description":"This choropleth map visualizes global income groups by country, coloring each nation according to its income classification on a natural Earth projection. The map supports interactive zooming and panning, with a legend displaying the categorical color scale. Built with D3 v5, it uses `geoPath` and `geoNaturalEarth1` for map projection, `scaleOrdinal` with `schemeSpectral` for colors, and loads country boundaries from the world-atlas TopoJSON dataset, joining income data from a TSV file. Hovering reveals country names and income groups via SVG titles.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/758ebeb90d54416299f722005b7a9bdb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}