{"version":"1.0","type":"rich","title":"Chorpleth Map","description":"This choropleth map colors countries by income group using an ordinal color scale from the `d3.scaleOrdinal` and `d3.schemeSpectral` APIs. It projects the world with `d3.geoNaturalEarth1` and `d3.geoPath`, drawing each country as an SVG path. The map is interactive, supporting zoom and pan via the `d3.zoom` event handler, and includes a custom legend generated with `colourLegend`. Data combines TopoJSON country boundaries with TSV attributes from the World Atlas dataset.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/68272b71aa054f0e9cfbbb4ff97756c7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}