This stylized bar chart displays the total number of reviews per app category from the Google Play Store Apps dataset, with each bar colored by the app’s content rating (age group). The visualization uses Vega-Lite’s API to encode the sum of Reviews on the x-axis and sorted Categories on the y-axis, with tooltips showing aggregated review counts. Custom axis styling is applied via a Vega-Lite config object, and the chart is rendered as an SVG using the vega-lite-api framework atop d3.v5.