Element: #191 Stacked bars (charts/bar) What it shows: A stacked bar chart splitting six months of revenue into four acquisition channels. When to use: Showing how a total is composed of channels or segments over time. Spec: - `` - 4 series in `series`: Organic, Paid, Referral, Direct, each with 6 values - `categories={months}` with `'Jan'` to `'Jun'` - `stacked` prop - `valueFormatter={fmt}` renders `$${(v / 1000).toFixed(0)}k` - `height="300px"` Tags: bar-chart, stacked, series, categories, revenue, card Needs: @codeatlasdev/ui@4.4.0 + echarts Components: Card, BarChart Live demo: https://ui.codeatlas.com.br/docs/charts/bar#stacked-bars