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# sunlight-theme
A theme provider for `@emotion/core` and `emotion-theming` that supplies the level of sunlight with `use-sunlight`. Supports middleware via a prop.
## Demo
[https://optimistic-kalam-56c21b.netlify.com](https://optimistic-kalam-56c21b.netlify.com)
## Usage
```javascript
// src/demo-component.js
// define an array of 11 colours
const mainRange = colormap({
colormap: 'autumn',
nshades: 11,
format: 'hex',
alpha: 1
})
// define an emotion style
const containerStyle = ({ colours }) => css`
color: ${colours.main};
`
// define a middleware function that translates
// the light level to a "theme" (some object
// that's useful for styles)
const colourMiddleware = theme => {
return {
...theme,
colours: {
main: mainRange[theme.lightLevel]
}
}
}
export const DemoComponent = ({ children }) => {
// middleware is optional but encouraged
// for mapping light level to colours
return (
<SunlightTheme middleware={[colourMiddleware]}>
<div css={containerStyle}>{children}</div>
</SunlightTheme>
)
}
```
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