Use this page to enable and disable notifications about certain events, change their presentation, and optionally enable their logging.
Display balloon notifications
Select this checkbox to enable event notifications for IntelliJ IDEA. (The notifications, generally, are shown in the balloons that appear on the screen when the corresponding events take place.)
Regardless of the state of this option, you will always find all notifications from the current session in the Notifications tool window.
Enable system notifications
Select this checkbox to allow showing system notification.
On Windows, you may want to disable this option to hide IntelliJ IDEA icon from the system tray.
If the Display balloon notifications checkbox is selected, the settings in this column specify how the notifications for the selected group of events are shown.
The available display options are:
Show in tool window
If the checkbox for a group of events is selected, the corresponding events are logged and can be seen in the Notifications tool window.
Enable sound notifications. This option lets you know that an operation has finished even if you switched to another window with the IDE working on the background.
Read the selected notifications out loud. The Read aloud column is available only on macOS. You can configure voice settings in macOS preferences. To learn more about accessibility features on macOS, see the official Apple documentation.