Your documentation on theming the Android support SDK is woefully outdated, referencing components that no longer exist in your 3.0.1 release.
On a separate note, themeability of your Android SDK could be dramatically improved; something as simple as a light `colorPrimary` makes the provided activities unusable due to the inability to change the enforced toolbar themes (`@style/ThemeOverlay.MaterialComponents.Dark.ActionBar` as of 3.0.1).
Please consider aggressively defining themeable attributes for consuming applications to customise. It'd be nice to be able to use your provided screens without either manually overriding your layouts or going so far as to implement a custom UI (though I do appreciate having those options). I'm now onto my second project where your SDK theming doesn't work out of the box.