For the records, the inspiration for this patch was that @Pablo Fournier (pablico) was running into this issue, where he wanted to delete all the motion paths for a bone, but he had to chase a bone that had montion path down, to clear it up. (Pablo maybe you can elaborate this a bit more?)

There is no task yet and there are no rules for this yet, but there is some discussion that we overused icons. And here is one of the cases.

The "world" icon is not appropriate here at all, and redundant.
The "object"/"bone" is unnecessary since there is a panel on the left where the context is visible.
The "exclamation" ("error" internally) it's also wrong, there is no error or nothing important here. The maximum that could be here is the "information" icon.

Also, while you're here, can you please take a look at this ugly label + Non-Grouped Keyframes.
I have already suggested improving it, but it turned out that no one understands what is meant here by +.

I talked to Pablico, he is happy with this solution.

@Yevgeny Makarov (jenkm) I don't mind if this is changed, to remove the icons. But I don't see the relation with this patch.

But I don't see the relation with this patch.

The relation is that you are changing exactly this code.

And the problem is that there is no other way to make such minor changes. Although no one is against such improvements.
Such a thing cannot go through the normal review process since developers are not interested in it as these are too insignificant.
The only possibility here is incorporation into a larger patch.

In D13609#360222, @Yevgeny Makarov (jenkm) wrote:

But I don't see the relation with this patch.

The relation is that you are changing exactly this code.

The fact that a patch touches some code doesn't mean that the same patch should include other improvements in that code too. As a matter of fact, it's the opposite -- the smaller a patch, the easier it is to review & accept.

And the problem is that there is no other way to make such minor changes. Although no one is against such improvements.
Such a thing cannot go through the normal review process since developers are not interested in it as these are too insignificant.
The only possibility here is incorporation into a larger patch.

This is nonsense. I'd be happy to have a tiny, simple patch that everybody agrees with and that can be landed easily.
As always: talk with the module before sending in a patch. Talk before coding. Every two weeks there is an Animation & Rigging module meeting, if you want to propose UI changes (relevant to that module) that's the best place to present them. Otherwise the #animation-module channel is a good place to do such proposals.

This was discussed in the Animation & Rigging module meeting, and the module members gave their thumbs up!