/usr/share/cairo-dock/themes/Default-Panel/launchers/01separator.desktop is in cairo-dock-core 3.4.1-1.
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 21 22 23 24 25 26 | #3.3.99.beta1
#[gtk-about]
[Desktop Entry]
#F[Icon]
frame_maininfo=
#d+ Name of the container it belongs to:
Container=_MainDock_-2
#v
sep_display=
#> Separators' appearance is defined in the global configuration.
Icon=
#X[Extra parameters]
frame_extra=
#f[0;100] Order you want for this launcher among the others:
Order=8.7614593505859375
Icon Type=2
Type=Separator
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