Custom colour function is broken. (since 2020)
You can find here my description and screenshots:
Even more bugs are listed here in the Desaster Backlog
Hey @kuklick ,
Thanks for all of the documentation though I was unable to see the airtable description nor screenshots as it asking for permission.
I’ve heard that the team was trying to get in contact with you regarding all of your feedback so let us know if you have missed of the communication. I know you have a lot of suggestions on what can be improved. 
@Rob Links are public now.
Yes, I’ve offered your team this week Tuesday and Wednesday but did not heard back anymore. So I would not say that I missed something.
Thanks for the update of permissions. Trying to reach out to them to make sure they got your communication.