{"version":"1.0","type":"rich","title":"Act_6_Q4","description":"This bubble chart compares global cities by per-capita GDP, average temperature, and population, with bubble size encoding population and color encoding continent. It uses D3 v6 to render an SVG visualization, employing `d3.scaleLinear` for the x/y axes, `d3.scaleSqrt` for bubble radius, and `d3.scaleOrdinal` with a category color scheme. Data is loaded via `d3.csv` from a GitHub Gist, and the chart includes both color and size legends.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/84eafae748874fc0804b65a3e930d00f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}