(In reply to comment #1)
What is "ProofreadPage status"? Are you sure it's easy?
Thanks for clarifying. In the extension, a message calls it "proofreading status" (I think) and another "page status" (it's also in the screenshot for the help page), and the docs talk of both "page quality" and "page validation".
Some consistency fixes might be needed in the extension before choosing the name in the info action.