{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, organized by continent and subregion, with each country shown as a text label and connected by curved links. The D3.js code uses the `tree` layout, `hierarchy`, and `linkHorizontal` generators to position the nodes and draw the connecting paths. Rendered as an SVG with a fixed viewport, the tree supports zooming through the `zoom` module, which updates the root group’s transform on the `'zoom'` event. Node labels vary in font size based on depth, using the Playfair Display typeface.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c48dcf65356f408aba83ff7eed267ab5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}