This scatter plot displays the Iris dataset, plotting sepal length against petal length and using different point shapes to distinguish between the three iris species. The visualization uses D3 v7 to create the plot, with a categorical shape scale assigning distinct symbols (from `symbolsFill`) to each species. Axes are rendered using D3's `axisLeft` and `axisBottom` functions, while a custom legend wizard communicates the shape-to-species mapping. Data is fetched asynchronously from a remote CSV file and parsed with `csvParse` before being passed to the chart.