Cramped icons in the new operations UI
Since the progress ring is relatively small, it cramps normal 16x16 symbolic icons so I think it'd be better to use smaller-than-the-usual size icons and ship them along with nautilus.
These 2 icons from dev kit should work for finished
and cancelled
respectively:
Renaming the assets to their purpose file-operation-finished-symbolic
and file-operation-cancelled-symbolic
would also be great.