Comment 4 for bug 1607199

Yes, I think providing a static image once is sufficient. Like a MirGraphicsRegion.

However there is no good reason to limit the number of times an app can upload a new icon. Certainly you would create bugs by limiting when and where the icon gets set. An app is allowed to set its icon at any time, and failure to honour that is a shell bug - not something we could or should ask app developers to fix if their app has worked perfectly elsewhere for years.

So I understand your concern, but solving the impersonation problem is worse than not solving it :)