This fork of the iris-pie-chart displays the distribution of three iris species as a pie chart with a legend. The chart uses d3.csv to load species data, d3.rollup to count occurrences, and d3.pie with d3.arc to generate and render SVG path slices. Each slice is labeled with its species name using arc.centroid, and a legend built with d3.scaleOrdinal links colors to species.