{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents the hierarchical structure of world countries, organized by continents and subregions as a horizontal tree layout. It displays all country names as text labels linked by curved paths, with font sizes decreasing at deeper levels. The implementation uses D3 v5’s `tree` layout and `linkHorizontal` generator to position nodes and draw connections, with `d3.zoom` enabling pan and zoom. Data comes from a local JSON file, rendered as SVG with custom styling.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/de5a707f1e074100b06b6d5531e40ff3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}