This visualization displays the win counts of multiple teams across years using layered area paths in an SVG, with each team distinguished by a color from the `d3.schemeCategory10` palette and a legend identifying them. The code loads CSV data via `d3.csv` with `d3.autoType`, then applies `d3.area()`, `d3.scaleLinear` for the axes, and `d3.axisBottom`/`d3.axisLeft` for the ticks. The chart emphasizes trend comparison through semi-transparent fills, sourced from a gist-hosted dataset, while relying on D3 v7 for all rendering.