/usr/share/GNUstep/Grr.app/Grr.desktop is in grr.app 1.0-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Encoding=UTF-8
Type=Application
Categories=X-GNUstep;
Name=Grr
Comment=Günthers reliable RSS Reader
Icon=/usr/lib/GNUstep/Applications/Grr.app/Resources/Grr-Icon.tiff
Exec=/usr/bin/openapp Grr
FilePattern=Grr.app;Grr;
MimeType=
|