This pie chart displays the proportion of smokers versus non-smokers in a dataset loaded from a GitHub gist. The visualization uses D3.js v6's `d3.pie` and `d3.arc` to generate SVG paths, with `d3.scaleOrdinal` assigning blue and red fills for the two categories. Each slice is labeled directly with its category name and count using the arc centroid. A separate HTML legend, built with D3 selections, repeats the color-keyed counts beside the chart, all rendered on a styled sky-blue background.