Installing and Using Pantheon-Notify

Pantheon-notify is an elementary-themed notification system.

To install pantheon-notify, install via the terminal:

sudo apt-get install pantheon-notify

To activate, you must override the current notification system. Again, in the terminal:

sudo scratch-text-editor /usr/share/dbus-1/services/org.freedesktop.Notifications.service

Change the Exec line to: Exec = /usr/bin/pantheon-notify.

Save, reboot, and enjoy.

Volume changes will also appear different.

Simply hover over the notification to pull up the option to close the popup.

Thanks to Trung for the tip.

[Update: April 3, 2013]
To revert to the original notification system (notify-osd), open the Notifications.service file again. This time change the Exec line back to Exec = /usr/lib/notify-osd/notify-osd. Reboot.