The left pane shows all apps that can send notifications to Notification Center. Select an app from the list and edit that app's settings on the right. Here are the options for each app:
- Alert Style. If you choose None there is never an on-screen banner but the alert will still show in Notification Center. A Banner slides in, stays for a few seconds and then slides away. An Alert stays on the screen until you click a button to dismiss it.
- If you uncheck the Show in Notification Center box, the app moves to the bottom of the app list and you receive neither on-screen banners nor a listing in Notification Center.
- You can also turn on or off icon badges (the little number that shows on an icon on the Dock such as the number of unread messages in Mail.)
- You can turn on or off sounds when an on-screen notification appears.
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