{"version":"1.0","type":"rich","title":"D3 Example","description":"A small multiples line chart shows population growth from 1950 to 2015 for China, India, and the U.S. It uses D3 v3 with SVG, `d3.svg.line`, `d3.time.scale`, and `d3.legend.color`, rendering colored strokes per country. The y-axis uses a custom SI format (B for billions), and data loads from a CSV via `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8969c73c96664416aebf5f2e1cf7d8aa?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}