/usr/share/icons/elementary-xfce-darker/index.theme is in xubuntu-icon-theme 14.04.2.
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 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | [Icon Theme]
Name=elementary Xfce darker
Comment=Addon for dark toolbar icons
Inherits=elementary-xfce-dark
Example=directory-x-normal
#Directory list
Directories=actions/16,actions/22,actions/24,actions/32,actions/48,actions/64,actions/128,actions/symbolic,
[actions/16]
Size=16
Context=Actions
Type=Fixed
[actions/22]
Size=22
Context=Actions
Type=Fixed
[actions/24]
Size=24
Context=Actions
Type=Fixed
[actions/32]
Size=32
Context=Actions
Type=Fixed
[actions/48]
Size=48
Context=Actions
Type=Scalable
[actions/64]
Size=64
Context=Actions
Type=Scalable
[actions/128]
Size=128
Context=Actions
Type=Scalable
[actions/symbolic]
Size=16
Context=Actions
Type=Scalable
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