{"version":"1.0","type":"rich","title":"Fork of World Countries Tree","description":"This example displays a hierarchical tree from a JSON dataset, with nodes labeled and connected by curved links whose stroke thickness varies with child data size. It uses D3.js v5, including the `tree` layout, `hierarchy` for data nesting, and `linkVertical` for path generation. The SVG rendering is controlled via `select`, with zoom functionality integrated through the `zoom` and `event` APIs. Text labels use a Playfair Display font, styled with a white shadow effect from CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b378d5851bbf4df8af2d7b4410871d2c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}