{"version":"1.0","type":"rich","title":"HDI 1990-2021","description":"A line chart displays Human Development Index (HDI) values by country from 1990 to 2021, with a drop-down menu toggling between overall, male, and female HDI metrics. Lines are colored by UNDP developing region via `scaleOrdinal`, while event markers appear as black dots. The chart uses d3.v7 with `scaleTime`, `scaleLinear`, `line`, and `flatGroup` to render trajectories, plus interactive tooltips on hover. Data is parsed from a CSV using `csvParse` and `timeParse`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/14f605b98bb9446d904c9fb303f5cd57?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}