mate-notification-daemon - 1.26.1-1+b4 main

mate-notification-daemon displays passive popup notifications, as per
the Desktop Notifications Specification.
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The Desktop Notifications Specification provides a standard way of
doing passive popup 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, as per the
Desktop Notifications spec.