This example shows a scatter plot of daily sales data, with light blue area fill beneath the points and red circles marking each data value. It loads CSV data from a GitHub gist via `d3.csv`, converts the fields to numbers, and uses `d3.scaleLinear` for both axes with `d3.axisBottom` and `d3.axisLeft` for tick marks. The reusable `scatterPlot` module defines configurable accessors for width, height, margins, and radius, though the main script directly builds a static SVG area chart.