For cover art, Get From Internet needs one tiny addition, so it provides the full set of cover art options.
It allows selecting a new cover art image it finds, or keeping an existing library image. But it is missing Remove Cover Art.
BECAUSE, sometimes the track already has a wrong image, but no proper image is being found by Get From Internet. The Get From Internet dialog needs an additional button, Remove Cover Art (doing the same same action as already on the Library menu).
It is much better to display no image than a wrong image.
Also, a track with no image is easy to locate later, to work on getting a proper image. But a track with a wrong image just disappears into the vast library.
Why not just exit Get From Internet then just deal with the wrong-image track? Because I'm often running Get From Internet on a long list of tracks -- an entire artist collection, or even more. So, a bad-image track is buried in the long list; I have to make manual notes, then go find tracks with this problem.
PS: This not an isolated need, because I routinely experience a wrong cover art image assigned, unnoticed. One source is ripping that pulls up a poor/wrong image. But another is when updating a track's cover art image, and not noticing that it also changes another track (or many other tracks) elsewhere in the library. This possibly can happen when artist and album names are the same, or album name is blank, or .... not sure, I see it happen by surprise and don't always discern a reason. I'm not faulting MC for doing this, just asking for a simple, consistent way to fix it when discovered.