{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents a hierarchical tree of world countries, organized by continent and region, with the root node labeled \"World.\" Data is loaded from a JSON file and rendered as a horizontal node-link diagram using D3 v5. The layout is computed with D3's `tree` and `hierarchy` functions, while `linkHorizontal` generates the curved connecting paths. The SVG-based visualization supports zooming via D3's `zoom` component, and text styling utilizes the Playfair Display font.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1ed4ac3cee0d41af8ed2d8230efc36a1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}