This scatterplot compares cereal manufacturers by plotting each product's rating against its calorie count. The visualization encodes the manufacturer as color, with Kellogg's points in red and Nabisco points in blue, and includes a categorical legend to distinguish the two brands. The chart is rendered as an SVG using D3 v7, with linear scales for both axes and a sequential color legend built with the d3-legend library. The underlying data is loaded from a CSV file containing manufacturer, rating, and calorie fields.