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docs: document dynamic theming

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Eric Liu 2021-01-22 16:48:10 -08:00
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@ -130,6 +130,34 @@ export default app;
See [webpack.config.js](examples/webpack/webpack.config.js) in [examples/webpack](examples/webpack).
#### Dynamic theming
Use `carbon-components-svelte/css/all.css` for dynamic, client-side styling.
Update the theme by setting the `theme` attribute on the `html` element. The default `theme` is `"white"`.
```html
<!DOCTYPE html>
<html lang="en" theme="g10">
<body>
...
</body>
</html>
```
Using JavaScript:
```svelte
<script>
/** @type {"white" | "g10" | "g90" | "g100"} */
let theme = "white";
$: document.documentElement.setAttribute("theme", theme);
</script>
<button on:click="{() => theme = 'g90'}">Update theme</button>
```
### TypeScript support
[TypeScript definitions](types) are generated by [sveld](https://github.com/IBM/sveld).