The options for the 'Change messaging preferences to default for this category?' popup that appears when editing a patron's category are Cancel and OK, but I think No instead of Cancel and Yes instead of OK would be clearer. A library could reasonably think that Cancel refers to cancelling the change in category, and No would make it clearer that refers to the preferences only.
To make this language more clear I think we should use a modal popup instead of a JS alert. +1