# XWUIChart100StackedArea

A 100%-stacked area chart: a fixed-type wrapper around `XWUIChart` where every
x-position's series total is normalized to 100%, so each band shows its share of
the whole over time rather than absolute values. Pass the same `{ series }` data as
any chart; configure a `block` preset (1-4) and a `size` (`sm` / `md` /
`lg`). Use it for part-to-whole composition trends - how each category's
proportion shifts across the x-axis.

## Basic Usage

Two series of monthly values stacked and normalized to fill the plot, showing each
series' percentage share at every month.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Two series normalized to 100% per month and stacked as filled areas.
```

## Browser Market Share

Desktop browser usage normalized to 100% per month so each band shows share of market.

```example
file: examples/BrowserMarketShare.ts
html: examples/BrowserMarketShare.html
title: Browser Market Share
description: Chrome, Safari, Edge, and Firefox share normalized to 100% each month with a percent tooltip.
```

## Energy Generation Mix

Grid electricity by source normalized to 100% per year, surfacing the decarbonization trend.

```example
file: examples/EnergyMix.ts
html: examples/EnergyMix.html
title: Energy Generation Mix
description: Renewables, gas, coal, and nuclear shares per year with Y grid values and a percent unit.
```

```api
```