Do context theme support tree shaking ?

For example is have code like this

```
//component.js
import { Button, Radio } from 'my-library';

const Component = props =>

```

```
//Theme.js
const contextTheme = {
Button: require('my-library/button/theme1.css'),
Radio: require('my-library/radio/theme1.css'),
Other: require('my-library/other/theme1.css'),
};

```
I'm using extract-text-plugin for webpack.
Will my final build contains CSS of other ass well ?

Start by reading the ThemeProvider and context-theme entry points, then inspect the webpack configuration using extract-text-plugin. Compare the generated CSS for Button and Radio with the unused Other theme; done means documenting whether tree shaking removes Other and what configuration or usage determines that.

Written by the indexing model from the issue text.