GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#define checksym_width 12
#define checksym_height 12
static char checksym_bits[] = {
0x00, 0x00, 0x00, 0x04, 0x00, 0x06, 0x00, 0x03, 0x80, 0x01, 0xc0, 0x00,
0x62, 0x00, 0x36, 0x00, 0x1c, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00};