{"version":"1.0","type":"rich","title":"Choropleth World population map","description":"A choropleth map displays world population by country, with each nation colored on a gradient from light to dark red based on its population size. The visualization uses the Robinson projection to render the world map, and employs a color scale defined by `d3.scaleThreshold` with a sequential color scheme. The map is drawn using `d3.geoPath`, with country boundaries loaded from a GeoJSON file and population data from a CSV. An interactive tooltip appears on mouseover, showing the country name and its population.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2ddcf07f25e44e13be595b25ca04c6a9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}