{"version":"1.0","type":"rich","title":"Fork of  world population density","description":"This interactive world map visualizes population density by country for the years 1980, 2000, 2010, and 2022. Users select a year from a dropdown menu to update the choropleth map, where darker colors indicate higher densities. The visualization uses d3.geoPath, d3.geoMercator, and d3.scaleThreshold to render geographic data from a TopoJSON file and CSV data loaded from GitHub. Hovering over a country reveals a tooltip with its density, and a ranking table displays the top ten most densely populated countries.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/15df38eedef840768e8c7c887a5476e6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}