This fork renders the IRIS dataset as a scatter plot, mapping petal length and width to the x and y axes while coloring each point by species (setosa, versicolor, and virginica). The SVG visualization uses d3.scaleLinear, d3.extent, axisLeft, and axisBottom to construct the chart, with circles colored via a switch statement. Data is loaded as CSV from a GitHub gist using d3.csv, and the plot fills the browser window with custom margins and rotated axis labels.