This scatter plot visualizes the relationship between vehicle weight and miles per gallon, with points shaped according to the number of cylinders. The visualization is built with D3 v7, using `scaleLinear` for both axes and `scaleOrdinal` with `symbolsFill` to map cylinder counts to distinct shapes. Axis labels and tick marks are generated through custom `axes` and `shapeLegend` modules, which leverage D3's `axisLeft`, `axisBottom`, and `symbol` APIs. Data is loaded asynchronously from a CSV file via `csvParse` and rendered as SVG paths.