This example displays a bubble chart comparing religious affiliations across countries, using circle size to encode population and axes for country and religion. Built with the Vega-Lite API, it registers Vega and Vega-Lite libraries with D3’s CSV loader to fetch data from a GitHub gist. The visualization automatically fills the browser viewport, applies custom axis styling from a config object, and includes a Vega-Tooltip handler for interactive population details on hover.