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# System prepended metadata

title: Demo overview

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# Demo overview

* CodeSandbox bringing it all together
  * Buttons that can use react-icons
  * ThemeProvider which can provide css variables for old and new values
* IE11 css variables usage
* We did work to hook up size auditor to everything
  * Already caught regressions
* Function component progress
  *
* Compose and recompose
  * ButtonBase
  * ToggleBase
  * LinkBase
* Still pending
  * SliderBase
* 
* RTL
* Child window support
* Bundle sizes
