/usr/share/app-install/desktop/xfig:xfig.desktop is in app-install-data 15.10.
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=xfig
X-AppInstall-Popcon=800
X-AppInstall-Section=universe
Exec=/usr/bin/xfig %f
InitialPreference=2
MimeType=image/x-xfig;
Name=xfig
Comment=Facility for Interactive Generation of figures under X11
Icon=xfig
Terminal=false
Type=Application
Categories=Graphics;
Keywords=vector;graphics;figure;drawing
X-Ubuntu-Gettext-Domain=app-install-data
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