{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This interactive visualization displays the hierarchical structure of world countries organized by continent and subregion, rendered as an indented tree layout. It uses D3.js v5 with the `tree`, `hierarchy`, and `linkHorizontal` APIs to compute positions and draw links, along with `zoom` and `event` for pan-and-zoom interaction. The data is loaded from `data.json` via `json()`. Node labels show country names with font size decreasing by depth, and the SVG output uses a teal stroke for connecting paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/23c66469eb2b4fb79115fc86e5190eff?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}