This bar chart shows the top 10 countries in 2018 by total exports, with bars colored by export type and tooltips displaying values. The visualization uses vega-lite-api to define a bar mark with x encoding for country name sorted by descending y values, and includes a vega-tooltip handler for interactivity. Data comes from a CSV file of World Bank World Development Indicators, filtered in getData.js using d3.csv and sorting country totals with d3.descending.