# Showcase

The flagship demo for `XWUIChartHeatmapMatrix`. It covers the four block presets, the size scale, per-cell value callouts, the chrome toggles (grid, axes, legend, title) and the loading skeleton, using a symmetric customer correlation matrix throughout.

The last section is a real 5-class confusion matrix: rows are the true label, columns the prediction, so the bright diagonal is correct calls and every off-diagonal cell is a mistake.