/usr/share/themes/Mikachu/openbox-3/bullet.xbm is in openbox 3.6.1-7.
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 bullet_width 4
#define bullet_height 7
static unsigned char bullet_bits[] = {
0x01, 0x03, 0x07, 0x0f, 0x07, 0x03, 0x01 };
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