This streamgraph visualizes global video game sales by platform over time, using a D3 stack layout with wiggle offset to create the flowing layered form. The data comes from a CSV file containing yearly sales figures, smoothed with array-blur for visual clarity. Colors are generated using d3.hcl and randomNormal, while the streamgraph is rendered as SVG with d3.area and labeled using d3-area-label. Hovering highlights a platform by inverting its fill to black with a white stroke.