Once a new OTR session is established, there is this nice obvious black line
at the top asking you to verify which I think is awesome. However, if auth
fails, this line disappears and it's not very obvious to use the "lock" at
the top to get a button to verify.
I would suggest to keep that annoying black line as long as the contact has
not been verified (even on failure) except if the "X" to close it has been
pressed.
/cc @dgoulet