This pie chart displays the distribution of Iris species from a CSV dataset loaded from a GitHub gist. The chart uses a clean, white background with an elegant color palette of blue, orange, and green to distinguish the three species, and includes labels directly on the slices, a bold title, and a legend showing counts. Built with D3.js v7, it employs `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` to generate the SVG slices, with `d3.rollups` aggregating the data.