{"version":"1.0","type":"rich","title":"Countries Tree","description":"This visualization displays a hierarchical tree of countries organized by continent and subregion, rendered as an SVG with horizontal links and text labels. The example uses D3 v5’s `tree` layout, `hierarchy`, `linkHorizontal`, and `zoom` APIs to generate and interactively pan and scale the structure. Data from `data.json` feeds the hierarchy, with font size varying by depth and leaf nodes left-aligned while parent nodes are centered.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/dddff4c577f44aec82d67ee1438bd7b6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}