/usr/share/themes/Murrina-Tangoesque/openbox-3/shade.xbm is in openbox-themes 1.0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #define shade_width 6
#define shade_height 6
static unsigned char shade_bits[] = {
0x3f, 0x3f, 0x00, 0x00, 0x00, 0x00 };
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