/usr/share/applications/gnome-mouse-panel.desktop is in gnome-control-center 1:3.4.1-0ubuntu1.
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 | [Desktop Entry]
Name=Mouse and Touchpad
Comment=Set your mouse and touchpad preferences
Exec=gnome-control-center mouse
Icon=input-mouse
Terminal=false
Type=Application
StartupNotify=true
Categories=GNOME;GTK;Settings;HardwareSettings;X-GNOME-Settings-Panel;
OnlyShowIn=GNOME;Unity;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=gnome-control-center
X-GNOME-Bugzilla-Component=mouse
X-GNOME-Bugzilla-Version=3.4.1
X-GNOME-Settings-Panel=mouse
# Translators: those are keywords for the mouse and touchpad control-center panel
Keywords=Trackpad;Pointer;Click;Tap;Double;Button;Trackball;
X-Ubuntu-Gettext-Domain=gnome-control-center-2.0
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