This chart displays the top 10 countries by deaths from air pollution in 2020 using a pie chart rendered as SVG. D3’s `pie` layout and `arc` generator create the segments, while `scaleOrdinal` maps country names to a custom color array. Each slice is labeled with its death count formatted in thousands, and a legend pairs color swatches with country names and values. The data is fetched as CSV from a GitHub gist via D3’s `csv` loader, with text styling applied through CSS classes.