/usr/share/applications/therion.desktop is in therion 5.3.9-4.
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 | [Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=Therion
GenericName=Cave Survey Software
Comment=Draw up surveys in Therion format
Type=Application
Exec=xtherion
Icon=therion
Categories=Education;Geology;Science;
MimeType=text/x-therion;text/x-therion-drawing;text/x-therion-config;
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