notification-daemon - 3.20.0-4+b3 main

notification-daemon displays passive pop-up notifications, as per
the Desktop Notifications Specification.
.
The Desktop Notifications Specification provides a standard way of
doing passive pop-up notifications on the Linux desktop. These are
designed to notify the user of something without interrupting their
work with a dialog box that they must close. Passive popups can
automatically disappear after a short period of time.