/usr/share/doc/axiom-doc/bitmaps/not=.bitmap is in axiom-hypertex-data 20170501-3.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 | #define not__width 16
#define not__height 16
#define not__x_hot -1
#define not__y_hot -1
static char not__bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x18, 0x00, 0x0c, 0xfe, 0x3f,
0xfe, 0x3f, 0x80, 0x01, 0xc0, 0x00, 0xfe, 0x3f, 0xfe, 0x3f, 0x18, 0x00,
0x0c, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00};
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