{"version":"1.0","type":"rich","title":"experiment","description":"This interactive sunburst chart visualizes hierarchical CO₂ emissions data, organized by region and country, with arc sizes proportional to emission values. Built with D3 v6, the visualization uses the `d3.hierarchy` and `d3.partition` APIs to compute the sunburst layout, while `d3.arc` generates the path geometry. Region and country categories are distinguished by ordinal color scales (`d3.scaleOrdinal` with `d3.schemeCategory10` and `d3.schemePastel1`), and tooltips on each arc display the name and emission value. The chart renders as an SVG, with a legend generated from the same data structure.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c66a51d562b442d9b5eef1919db3c99c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}