Progress UI: issues in the presentation of "Stop" action
The action to cancel an operation has some awkward presentation issues:
- the tooltip for the action can just say "Cancel" instead of "Stop Operation" to be less wordy
- when cancelled the button uses the successful
✔ icon, should probably just be the cancel icon but insensitive when it's been cancelled (should still use the check when an operation has completed successfully) - the tooltip still appears when the action has already been taken and the button is insensitive