Additional clarification:
No one lost a verification badge today–If you received an email that your channel will no longer be verified, this was just an advanced notice & you can appeal
The checkmark has never appeared on YouTube mobile channel pages (this will be added soon)https://twitter.com/TeamYouTube/status/1174735005215420416 …
This will make it confusing. A check mark is the universal symbol of "the correct choice" (= verified), so people automatically know the meaning already. While a random background colour means nothing and will bring confusion, if people even notice it's there.
