This dark-themed scatter plot compares club revenue against the number of championships won, using color to distinguish sports and bubble size to indicate the club's founding year—older clubs appear as larger circles. The visualization is built with D3.js (v7) and rendered as SVG, loading CSV data via `d3.csv` and `autoType`. It employs `d3.scaleLinear` for axes, `d3.scaleOrdinal` with the Tableau10 scheme for categorical colors, and a reversed `d3.scaleSqrt` for radii. Hovering reveals a tooltip positioned via `d3.pointer`.