This visualization uses fixation data from the Old Faithful dataset to show the density of eye-tracking points on a stimulus image. The contour map, generated with `d3.contourDensity` and rendered via `d3.geoPath`, uses a sequential green color scale to represent point concentration. The code loads a CSV of mapped fixation coordinates, scales them linearly, and applies a bandwidth of 50 to create smooth density regions. The SVG output highlights areas of high visual attention based on recorded user gaze patterns.