This example displays a pie chart of total sales by category, using data fetched from a Walmart CSV file hosted on GitHub. The chart.js library renders the visualization directly onto an HTML canvas element, with each category’s sales value mapped to a slice and colored using a predefined palette. The code loads the CSV, splits it into rows, and extracts the item category and total sales columns before constructing the chart with a title and non-responsive sizing. The rendering is entirely client-side, using the Canvas API through Chart.js.