This example visualizes the distribution of religious affiliations across countries using a circular scatter plot, where each circle’s position encodes country and religion, and its size represents population. The visualization is built with the Vega-Lite API, which registers Vega and Vega-Lite libraries to generate an SVG renderer. Data is loaded asynchronously from a remote CSV via D3’s `csv` method, then passed to a `vl.markCircle()` encoding that maps fields to axes, size, and tooltips. The view is configured to fit the window dimensions, and a custom config adjusts axis styling and font sizes. The Vega Tooltip handler enables interactive hover details.