{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents a hierarchical tree of world countries, organized by continent and subregion. It shows the parent-child relationships from the \"World\" root down to individual nations, with text labels positioned along the branches. The data comes from a JSON file containing the geographic hierarchy.\n\nThe implementation uses D3 v5 with a custom tree layout and horizontal link generator to position nodes and draw connecting paths. Interactive zooming is enabled through D3's zoom utility, which applies a transform to the SVG group element. Text styling uses the Playfair Display font with a white shadow to improve legibility over the connecting paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/279cdcf44f434aeda37c0579f680e361?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}