gnome-flashback

About gnome-flashback

From Debian's package description

GNOME Flashback continues the traditional desktop interface which was used in GNOME 2.x, but using modern GNOME technologies.

This package provides a helper application for the GNOME Flashback desktop session. This application:

• provides the Logout, Reboot and Shutdown dialogs;
• provides the Sound, Bluetooth and Power tray applets;
• implements screenshot and screencast functionality;
• implements input source switching functionality;
• draws desktop background and icons;
• implements other functionality which was previously handled by gnome-settings-daemon.

From Debian's description of the gnome-flashback package, under that package's license.