#define delta_width 16
#define delta_height 16
#define delta_x_hot -1
#define delta_y_hot -1
static char delta_bits[] = {
   0xc0, 0x00, 0xf0, 0x03, 0x30, 0x03, 0x18, 0x00, 0x18, 0x00, 0xf8, 0x03,
   0xf0, 0x07, 0x38, 0x0e, 0x18, 0x0c, 0x18, 0x0c, 0x38, 0x0e, 0xf8, 0x0f,
   0xf0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};