/usr/share/xcrysden/images/bold.xbm is in xcrysden-data 1.5.60-1build3.
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 | #define bold_width 17
#define bold_height 17
static unsigned char bold_bits[] = {
0x00, 0x00, 0x00, 0xfc, 0x07, 0x00, 0xfc, 0x0f, 0x00, 0xfc, 0x1f, 0x00,
0x38, 0x3c, 0x00, 0x38, 0x38, 0x00, 0x38, 0x3c, 0x00, 0xf8, 0x1f, 0x00,
0xf8, 0x1f, 0x00, 0xf8, 0x3f, 0x00, 0x38, 0x78, 0x00, 0x38, 0x70, 0x00,
0x38, 0x78, 0x00, 0xfc, 0x3f, 0x00, 0xfc, 0x1f, 0x00, 0xfc, 0x0f, 0x00,
0x00, 0x00, 0x00};
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