/usr/share/blt2.4/demos/bitmaps/fish/left1.xbm is in blt-demo 2.4z-7ubuntu2.
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 fc_left1_width 16
#define fc_left1_height 16
#define fc_left1_x_hot 8
#define fc_left1_y_hot 8
static char fc_left1_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x02, 0xe0, 0x14, 0x10, 0x1f,
0xd8, 0x14, 0xd8, 0x14, 0x08, 0x10, 0x08, 0x14, 0xd0, 0x14, 0x70, 0x1e,
0x60, 0x13, 0x80, 0x01, 0x00, 0x01, 0x00, 0x00};
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