Using Theme UI without MDX
theme-ui package supports treeshaking, and can generally be used with or without MDX.
If you'd like finer-grained control over your application's bundle and do not need to use MDX, you can install the
@theme-ui/core package instead.
npm i @theme-ui/core
This package includes only a subset of the features of Theme UI and lacks support for MDX, color modes, and base global styles.
jsx function and
ThemeProvider component from this package for a bare-bones Theme UI setup.