/usr/share/desktop-directories/ubuntustudio-dtp.directory is in ubuntustudio-menu 0.19.
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 6 7 | [Desktop Entry]
version=1.0
Type=Directory
Icon=ubuntustudio-publishing
X-Ubuntu-Gettext-Domain=gnome-menus
Name=Publishing
Comment=Desktop Pubishing Applications
|