{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization shows a hierarchical tree of world countries organized by continent and subregion, with text labels sized by depth. The tree layout uses D3’s `tree` layout with `linkHorizontal` paths, rendered as SVG. Zooming is enabled via `d3.zoom` on the root group, and the data is loaded from a local JSON file using `d3.json`. Country names are drawn with font size decreasing by depth, using the Playfair Display font.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/137e48f3ada84af39daa3cf9bd49b3ef?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}