Undo Button without Feedback
Hi all,
under Settings->Accounts->Account you find this interface
As you can see, the undo button is greyed-out although I am in the process of changing the account name.
Only once I click out of the account name text box, the undo button becomes actionable.
To increase discoverability of the undo button's functionality, it should become actionable, as soon as any changes are made on that page (account name, signature & download history).