{"version":"1.0","type":"rich","title":"World Countries Tree","description":"A hierarchical tree visualizes the geographic structure of world countries, branching from continents into subregions and individual nations. The layout renders as a tidy tree using `d3.tree` and `hierarchy`, with horizontal links generated by `linkHorizontal` and SVG paths. Text labels appear at each node, with font size scaling by depth. The visualization supports pan and zoom interactions via `d3.zoom`, applied to a grouped SVG element. Data comes from a local `data.json` file, and the styling uses the Playfair Display font with text shadows for readability.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c1dfb8fdd83840ea86e6802290adc41d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}