{"version":"1.0","type":"rich","title":"Choropleth Map","description":"A choropleth map colors countries according to their economic classification, using an ordinal color scale with a spectral scheme. The map includes zooming and panning via the `zoom` event, and a legend shows the color-to-value mapping. Built with D3 v5, it uses `geoPath` and `geoNaturalEarth1` for the map projection, and the data comes from the `world-atlas` dataset, loaded with `tsv` and `json` calls.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c4ebf8339a154955a935d6b1fc25cd7a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}