{"version":"1.0","type":"rich","title":"Fork of World Countries Tree","description":"A hierarchical tree visualization displays world countries organized by continent and subregion. The data structure nests nations under regional groupings like Southern Asia and Western Asia. Using D3 v5's `d3.tree` layout and `d3.hierarchy`, the example renders SVG paths with rounded corners via a custom link generator. Text labels use a Playfair Display font, with font size scaling by node depth. Users can pan and zoom the entire visualization through D3's `d3.zoom` behavior.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f9cb48e64e7a473e8887462179ded929?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}