This visualization combines a bar chart with a decorative golden circle overlaid at the center of the view. The bar chart displays letter-frequency data loaded from a CSV file, with interactive bars that highlight and dim upon selection. Built with React and D3 v7, it uses `d3.scaleBand` and `d3.scaleLinear` for scales, and `d3.axisBottom`/`d3.axisLeft` for axes with gridlines.