/usr/share/app-install/desktop/pidgin-otr.desktop is in app-install-data 15.10.
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 8 9 10 11 12 13 | [Desktop Entry]
X-AppInstall-Package=pidgin-otr
X-AppInstall-Popcon=7350
X-AppInstall-Keywords= pigeon;gaim;chat;windows;live;aim;otr
X-AppInstall-Section=universe
Name=Pidgin Internet Messenger Off-the-Record Plugin
Comment=Off-the-Record Messaging plugin for pidgin
Icon=pidgin
Type=Application
Categories=Network;InstantMessaging;
X-Ubuntu-Gettext-Domain=app-install-data
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