{"version":"1.0","type":"rich","title":"Fork of World Countries Tree","description":"A hierarchical tree layout displays the countries of the world organized by continent and subregion, with each country as a leaf node. The visualization uses `d3.tree` and `d3.hierarchy` to compute the layout from a nested JSON structure, rendering curved links with `d3.linkHorizontal`. Text labels position nodes with font sizes inversely scaled by depth inside an SVG, while `d3.zoom` enables panning and zooming the entire tree.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b2498134d1934a42b5bb767d95ca5289?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}