{"version":"1.0","type":"rich","title":"Choropleth Map","description":"This choropleth map shows how Canada’s provincial and territorial populations changed annually from 1991 to 2019. Animated transitions recolor each region as a slider or playback control (not implemented here) would step through years. The visualization uses D3 v5 with `d3.geoPath` and a `d3.geoAlbers` projection to render TopoJSON boundaries, while population data is loaded from a CSV. Province fill colors are intended to map to population values, though the current code leaves them white.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/19b1c693d21c416ba1f4de55df7e5609?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}