{"version":"1.0","type":"rich","title":"d3 Choropleth Map","description":"This choropleth map colors countries by economy using a spectral ordinal scale, with hover highlighting and zoom/pan via d3.zoom. It loads TopoJSON geographic data and CSV attributes through Promise.all, then renders paths with d3.geoPath and a Natural Earth projection. A custom color legend displays the ordinal scale’s domain as circles with labels, while the map’s SVG elements are styled with CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0255b704e9ed44aeadaeacf49d259b7c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}