/usr/share/afterstep/applications/educational.desktop is in afterstep-data 2.2.12-11.1.
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]
Name=GNUplot
GenericName=Function Plotter
Comment=Interactive plotting program
Exec=gnuplot
Icon=normal/PencilCup
Terminal=true
Type=Application
Encoding=UTF-8
Categories=Education
TryExec=gnuplot
|