A stacked bar chart shows the distribution of movie ratings across six genres, with each bar divided into five rating categories from "below 5.0" to "above 8.5" as percentages. The visualization uses D3 v7 with SVG rendering, employing `d3.stack()` to compute stacked series, `d3.scaleOrdinal` for color mapping, and `d3.scaleBand` for the categorical axis. Interactive tooltips display exact percentages on mouseover. Data comes from a CSV file with genre and rating proportion columns.