This pie chart visualizes monthly expenses across five categories: Rent, Food, Travel, Shopping, and Bills. The visualization uses D3 v7 to create an SVG-based donut chart with category labels positioned along the arcs and a legend displaying each category's name and corresponding value. It employs `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` with the `schemeCategory10` color palette to compute arc paths, position labels, and assign colors based on data loaded from a CSV file.