This example visualizes the impact of movie genres on ratings using a stacked bar chart, where each genre (represented by vegetables in the data) is broken down into rating-level percentages that sum to 1. Hovering over any segment displays a tooltip with the precise percentage for that rating category. The chart is built with D3 v7, using `d3.stack()` to create stacked bars, `d3.scaleBand()` for the y-axis, and `d3.scaleLinear()` for the x-axis. User interactions are handled through `.on('mouseover')`, `.on('mousemove')`, and `.on('mouseout')` events, with data loaded from an embedded CSV.