{"version":"1.0","type":"rich","title":"3 World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, grouping them by continent and subregion. The data, sourced from a JSON file, is organized from a root \"World\" node down through regional categories. D3.js v5 is used to render the structure as horizontal links and text labels on an SVG canvas. The implementation employs D3's `tree` layout, `hierarchy`, `linkHorizontal`, and `zoom` APIs to create the expandable tree. The display features a custom Playfair Display font and applies a font-size based on the node's depth in the hierarchy.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/80d4ec2f59e8418fb3f22c734acd54ec?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}