{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map colors countries by income group using an ordinal color scale built with `d3.scaleOrdinal` and `schemeSpectral`. It renders geographic boundaries with `d3.geoPath` and a Natural Earth projection, with country data sourced from the world-atlas TopoJSON dataset. Users can pan and zoom via `d3.zoom`, and hovering highlights individual countries. A custom `colorLegend` component displays the categorical color scale as an SVG legend, while tooltips show each country’s name and income group.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/fcce600455b949fcb36497487a933801?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}