{"version":"1.0","type":"rich","title":"Fork of Population Distribution","description":"This interactive choropleth maps world population by country, with a dropdown to switch between years (1980–2030) and a sidebar ranking the top ten most populous nations. It uses D3 v6 with `d3.geoPath`, `d3.geoMercator`, and a `d3.scaleThreshold` color scale, pulling CSV data from a GitHub repository and GeoJSON country boundaries. Hovering reveals a tooltip with the country name and population, while the map redraws on year selection.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/74f3c8dfc9994bd5bacf161f99062347?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}