A pie chart displays the distribution of the Outcome attribute in a diabetes dataset, showing the proportional split between two outcome categories. The visualization loads CSV data from a GitHub repository, then uses D3's pie generator and arc generator to construct the chart, with slices colored via a sequential ordinal scale. The chart includes a legend mapping each outcome to its corresponding color. The example demonstrates importing D3 modules and local ES6 modules, with rendering handled through SVG in an HTML page.