/usr/share/applications/lv2rack.desktop is in zynjacku 6-4.
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 | [Desktop Entry]
Type=Application
Name=Lv2rack
GenericName=LV2 plugins host
Comment=LV2 plugins host for JACK
Icon=lv2rack32x32
Exec=lv2rack
Terminal=false
Categories=AudioVideo;Audio;
|