{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents the hierarchical structure of world countries, organized by continent and subregion, as a horizontal tree diagram. Each node displays a country or region name, with font size decreasing at deeper levels. The tree layout uses D3’s `tree` and `hierarchy` functions, with `linkHorizontal` drawing the curved connections. Pan and zoom are enabled via `d3.zoom`, while text labels include white shadows for readability. Data comes from a JSON file with nested children, rendered as SVG elements with a custom Playfair Display font.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/43908b18a2c44e1b8bf16533b2d431d9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}