We're using rmwc components with material UI. This doesn't work as expected because of your tagMap:

import { Button } from 'rmwc'
<ReactFilestack
  componentDisplayMode={{
    type: Button
  }}
/>

As the ReactFilestack component only renders the button, optimally I would expect the API to be something like this..

import { Button } from 'rmwc'
<ReactFilestack

Currently, whenever a TU or TO fails, its error message is only showed if Butterfly is run in debug mode. The error message should be printed even in INFO level, but the error stack trace should remain only printed in debug mode.

Improve documentation on contribution guide

• how to contact
• process to contribute