This example shows a bubble chart comparing beverages on glucose levels (x-axis) and rating (y-axis), with bubble size representing calories and color indicating beverage brand across seven groups like Sprite, Fanta, and Pepsi. It loads data from a CSV file using `d3.csv` and renders in SVG via D3 v7, employing `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` with `d3.schemeSet1` for color encoding, and includes separate legends for calorie sizes and brand colors.