{"version":"1.0","type":"rich","title":"Choropleth Map","description":"A choropleth map colors world countries by economic classification using an ordinal color scale derived from d3.scaleOrdinal and d3.schemeSpectral, with a legend rendered via a custom colourLegend component. Geographic shapes are drawn with d3.geoPath and a Natural Earth projection, while data loads from World Atlas TopoJSON and TSV files. Hovering highlights countries, and d3.zoom enables panning and zooming with animated transitions on the legend circles.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ccc1f012ce6140788f24f8cfd93bd291?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}