This bar chart shows total sales aggregated by product category from a 120-sample dataset (bar_dataset_120.csv). Each bar’s height encodes the summed sales value per category, with a color encoding distinguishing categories and a tooltip available on hover. The visualization is built using Vega-Lite’s declarative specification, embedded via vega-embed, and relies on an aggregate transform to compute the sum of sales grouped by category. The chart includes labeled axes, a title with subtitle, and disables the default action menu.