This pie chart visualizes the contribution percentages of different people to a song, using a dataset loaded from a GitHub gist CSV file. The chart displays ten colored slices, each paired with a legend listing the person’s name and their contribution value formatted with `d3.format`. The visualization uses D3 v5 APIs including `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` to generate SVG paths and legends, with each slice colored via a fixed array and rendered in an SVG container.