{"version":"1.0","type":"rich","title":"World Countries Tree","description":"A tree diagram displays a hierarchy of the world's countries, organized by continent and subregion. The D3.js visualization uses `d3.tree`, `d3.hierarchy`, and `d3.linkHorizontal` to compute and draw the graph’s links, while labels for each node are rendered as SVG text elements. The underlying data, in `data.json`, follows a nested parent-child structure, and the layout is sized dynamically to fit the viewport. The paths are styled with a teal stroke, and the text labels have white shadows for readability.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2d67948e42024518b8ce74a529c4b65f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}