This pie chart displays the distribution of data science salaries by skill category, showing the count of each skill in the dataset. The visualization uses D3.js v7 to load a CSV file from GitHub, aggregate skill counts with `d3.rollup`, and generate pie slices with `d3.pie` and `d3.arc`. A color legend, built with D3 selections, lists each skill alongside its corresponding count. The SVG rendering uses an ordinal color scale from `d3.schemeCategory10` to distinguish the categories.