/usr/lib/swi-prolog/xpce/bitmaps/close.bm is in swi-prolog-x 6.6.4-2ubuntu1.
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 | #define close.bm_width 16
#define close.bm_height 16
static char close.bm_bits[] = {
0x00, 0x00, 0xfe, 0x3f, 0x02, 0x20, 0x0a, 0x28, 0x12, 0x24, 0x22, 0x22,
0x02, 0x20, 0x02, 0x20, 0x02, 0x20, 0x22, 0x22, 0x12, 0x24, 0x0a, 0x28,
0x02, 0x20, 0xfe, 0x3f, 0x00, 0x00, 0x00, 0x00};
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