{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map colors countries by economic classification, with a hover effect highlighting individual nations and a legend showing the categorical color scale. The visualization renders world geography using `d3.geoPath` with a Natural Earth projection, while `d3.zoom` enables pan and zoom interaction. Data loads from the world-atlas TopoJSON and TSV files, merged by country ID, and the color scale uses `d3.scaleOrdinal` with `schemeSpectral` ranges. The legend is built as a reusable component with `selection.enter` and `merge` patterns.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c01def0762834f8896c80ae753f200b9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}