{"version":"1.0","type":"rich","title":"Choropleth Map","description":"An interactive choropleth map shades countries by the average number of Olympic medals won, with a dropdown menu to switch between gold, silver, and bronze. D3 v6 drives the visualization, using `d3.geoMercator` and `d3.geoPath` to project GeoJSON country boundaries, while `d3.scaleThreshold` maps medal counts to color scales like `d3.schemeOranges`. Hovering highlights a country and displays a tooltip with its name and medal total. Data comes from a CSV of Olympic medal summaries, rendered as SVG with animated opacity transitions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e97f56f315684fbb8df67ce5f2ea5293?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}