When changing the icon on a command button (such as in the applicaiton button in the ribbon) the BasicCommandButtonUI can hang onto the old icons via asynchronous loading listeners. We need to trim those on UI uninstall and whenever the icons change.
When changing the icon on a command button (such as in the applicaiton button in the ribbon) the BasicCommandButtonUI can hang onto the old icons via asynchronous loading listeners. We need to trim those on UI uninstall and whenever the icons change.