This pie chart visualizes the distribution of student performance categories, with each slice labeled and colored according to its category. The visualization uses D3 v7’s `d3.pie()` and `d3.arc()` to generate the slices, while `d3.scaleOrdinal` with `schemeSet2` assigns colors. Data is loaded asynchronously from a CSV file hosted on GitHub Gist and rendered as an SVG, with a legend positioned to the right of the chart to identify each category.