/usr/include/images/tri_down.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 | /* Format_version=1, Width=16, Height=7, Depth=1, Valid_bits_per_item=16
*/
0xFE00,0xFE00,0x7C00,0x7C00,0x3800,0x3800,0x1000,
|