# Showcase

The flagship demo for `XWUIChartCohortRetentionHeatmap`: the four block presets, the sm / md / lg size scale, the title, legend and percentage-label toggles, short against long cohort curves, plus the interactive, loading and isometric states.

Every instance is mounted into its own child element, because an XWUI component clears its container when it is constructed. All cohort data (weekly signups, trial to paid, monthly retention) is inlined, so the page needs no network access.