/usr/share/desktop-directories/unitycc.directory is in unity-control-center 15.04.0+18.04.20180216-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | [Desktop Entry]
Name=Control Center
Icon=gnome-settings
Type=Directory
X-Ubuntu-Gettext-Domain=unity-control-center
|