static unsigned int nav_width = 11;
static unsigned int nav_height = 11;

/*  Call this macro repeatedly.  After each use, the pixel data can be extracted  */

#define NAV_PIXEL(data,pixel) {\
pixel[0] = nav_header_data_cmap[(unsigned char)data[0]][0]; \
pixel[1] = nav_header_data_cmap[(unsigned char)data[0]][1]; \
pixel[2] = nav_header_data_cmap[(unsigned char)data[0]][2]; \
data ++; }

static unsigned char nav_header_data_cmap[3][3] = {
        {153,153,153},
        {255,255,255},
        {  0,  0,  0}
};
static unsigned char nav_header_data[] = {
        2,0,0,0,0,0,0,0,0,0,2,
        0,2,0,0,0,1,0,0,0,2,0,
        0,0,2,0,1,1,1,0,2,0,0,
        0,0,0,2,0,0,0,2,0,0,0,
        0,0,1,0,2,0,2,0,1,0,0,
        0,1,1,0,0,2,0,0,1,1,0,
        0,0,1,0,2,0,2,0,1,0,0,
        0,0,0,2,0,0,0,2,0,0,0,
        0,0,2,0,1,1,1,0,2,0,0,
        0,2,0,0,0,1,0,0,0,2,0,
        2,0,0,0,0,0,0,0,0,0,2
};