/usr/include/images/tri_left.pr is in xviewg 3.2p1.4-28.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | /* Format_version=1, Width=16, Height=12, Depth=1, Valid_bits_per_item=16
*/
0x0001, 0x0007, 0x001F, 0x007F, 0x00FF, 0x007F, 0x001F, 0x0007,
0x0001, 0x0000, 0x0000, 0x0000,
|