{"version":"1.0","type":"rich","title":"World Countries","description":"This interactive tree diagram visualizes the hierarchical structure of world countries, organized by continent and subregion. The visualization reads a nested JSON data source and maps it using a horizontal tree layout, with the `d3.tree()` function configuring the node positions. The `d3.linkHorizontal()` generator creates the connecting paths, while color categories from `d3.schemeCategory10` distinguish continents. The SVG rendering supports zooming via `d3.zoom()`, and the Playfair Display font provides stylistic text labels for each country, region, and continent.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/45e44fd6d2c74ac18474b5559c753900?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}