/usr/share/app-install/desktop/dolphin:kde4__dolphin.desktop is in app-install-data 14.04.0.
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 16 17 | [Desktop Entry]
X-AppInstall-Package=dolphin
X-AppInstall-Popcon=6933
X-AppInstall-Section=universe
Name=Dolphin
Exec=dolphin %i -caption %c %u
Icon=system-file-manager
Type=Application
X-DocPath=dolphin/index.html
Categories=Qt;KDE;System;FileTools;FileManager;
GenericName=File Manager
Terminal=false
MimeType=inode/directory;
InitialPreference=10
X-Ubuntu-Gettext-Domain=app-install-data
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