{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, organized by continent and subregion, using a left-to-right layout with labeled nodes. It renders country names at varying font sizes based on depth, with horizontal links connecting parent and child nodes. The code uses D3 v5’s `tree`, `hierarchy`, and `linkHorizontal` APIs to compute positions, and applies SVG zooming via `zoom()` on the entire graph. Data comes from a local `data.json` file, and styling uses custom CSS for the serif font and teal link color.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/87a61db2da714425a82d28d407f9e3b9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}