This scatter plot visualizes the relationship between patient counts and mean payment amounts across healthcare resource groups, colored by therapy type and sized by clinical severity. It uses the vega-lite-api to construct the specification, with vega-lite for rendering and d3.csv from D3 v5 to load the dataset from a GitHub gist. Points are rendered with small, semi-transparent filled circles, and axes are customized via a config object that removes domain lines and adjusts font styles.