/usr/share/applications/marco-compton.desktop is in mate-tweak 18.04.16-1.
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 12 13 14 15 16 17 18 19 20 | [Desktop Entry]
Type=Application
Name=Marco
Exec=marco-compton
NoDisplay=true
# name of loadable control center module
X-MATE-WMSettingsModule=marco
# name we put on the WM spec check window
X-MATE-WMName=Marco
# back compat only
X-MateWMSettingsLibrary=marco
X-MATE-Bugzilla-Bugzilla=MATE
X-MATE-Bugzilla-Product=marco
X-MATE-Bugzilla-Component=general
X-GNOME-Autostart-Phase=WindowManager
X-MATE-Autostart-Phase=WindowManager
X-GNOME-Provides=windowmanager
X-MATE-Provides=windowmanager
X-GNOME-Autostart-Notify=true
X-MATE-Autostart-Notify=true
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