This patch make only visual changes to the dialog that prompts users to save changes.
- Icon changed from "Info" to "Warning"
- "Discard Changes" -> "Don't Save" for clearer opposite options and better match to OS versions.
- Shows filename if previously saved
- Nicer proportions
For Windows, these changes are illustrated here. Top pair is before, bottom is after:
For Mac the gap between the buttons is left in. Top pair is before, bottom is after.