Incorrect dialogues on "Close" button of "Edit Content" of email campaign

Incorrect dialogues on "Close" button of "Edit Content" of email campaign

Scenario:
  1. Choose Edit Content of an email campaign.
  2. Then choose Close.
  3. The dialog popup appears: "You have modified the content. Do you want to save?"
  4. The two response options are OK and Cancel. These should be Yes and No, or something clearer.
  5. Regardless of which option one chooses, a green box will appear with a checkmark and the text "Campaign saved successfully". But, if one has chosen Cancel, then presumably changes were NOT saved, and the text should be something like: "Changes discarded".