Indicate operations success/failure in operations button
Using Nautilus 3.22.3 just got a copy of my software repository and spend a while waiting for an intuitive indicator pointing me that my copy was finished, I think the indicator should be more explicit, both when operation success or fail.
My proposal is to change somehow the indicator to show better the result of an operation, either if success or fail, sometimes you are not looking the notifications or are doing some extra stuff and you can't see at glance if everything is already copied, moved or deleted, maybe show a symbol inside like a tick or an X or something similar.
Benefits of the solution
Can give the users more instant information about the operation they are expecting to finish. Can help usability by giving visual aids about the result of the operation in progress.