/usr/share/ghostscript/9.05/Resource/ColorSpace/sGray is in libgs9-common 9.05~dfsg-0ubuntu4.5.
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 | % Copyright (C) 2009 Artifex Software, Inc. All rights reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% For more information about licensing, please refer to
% http://www.ghostscript.com/licensing/. For information on
% commercial licensing, go to http://www.artifex.com/licensing/ or
% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
% $Id$
% One-component color space similar to sRGB color space.
currentglobal true setglobal
/sGray
[ /CIEBasedA
3 dict begin
/WhitePoint [ 0.9505 1 1.0890 ] def % D65
/DecodeLMN [ % sRGB gamma transform
{ dup 0.03928 le { 12.92321 div } { 0.055 add 1.055 div 2.4 exp } ifelse }
bind dup dup ] def
/MatrixLMN [ % sRGB to XYZ (D65) matrix (ITU-R BT.709-2 Primaries)
0.412457 0.212673 0.019334
0.357576 0.715152 0.119192
0.180437 0.072175 0.950301 ] def
currentdict end
]
/ColorSpace defineresource pop
setglobal
|