/usr/share/app-install/desktop/teamspeak-client:teamspeak.desktop is in app-install-data 0.12.04.4.
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 14 15 | [Desktop Entry]
X-AppInstall-Package=teamspeak-client
X-AppInstall-Popcon=83
X-AppInstall-Section=multiverse
Name=TeamSpeak
Comment=VoIP chat for online gaming
Exec=padsp teamspeak
Icon=teamspeak
Terminal=false
Type=Application
Categories=Application;Network;Telephony;
StartupNotify=true
X-Ubuntu-Gettext-Domain=app-install-data
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