/usr/share/app-install/desktop/edenmath.app:EdenMath.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.
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X-AppInstall-Package=edenmath.app
X-AppInstall-Popcon=290
X-AppInstall-Section=universe
Type=Application
Version=0.94
Categories=Utility;Calculator;
Name=EdenMath
Comment=A Scientific Calculator
Icon=_usr_lib_GNUstep_Applications_EdenMath.app_Resources_EdenMath
Exec=EdenMath
X-Ubuntu-Gettext-Domain=app-install-data
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