/usr/share/applications/v-sim.desktop is in v-sim 3.7.2-5.
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 | [Desktop Entry]
Encoding=UTF-8
Name=V_Sim
GenericName=Atomic visualisation
Exec=v_sim
Icon=v_sim
Terminal=false
Type=Application
Categories=Education;Science;Physics;Chemistry
X-Ubuntu-Gettext-Domain=v_sim
|