{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization uses a hierarchical tree layout to organize world countries by continent and subregion, with each country name rendered as a text label. The code builds the tree with `d3.hierarchy` and `d3.tree`, draws curved link paths using `d3.linkHorizontal`, and applies zoom via `d3.zoom`. Labels scale in font size based on depth. Data comes from the local `data.json` file, and the SVG output uses a custom Playfair Display font.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d09bfdd831f54d548defea66876951f3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}