Map
{
    map-bgcolor: #fff;      /* the "ocean" is black */
}

#zoom0
{
    polygon-pattern-file: url("images/grid-noise-pattern.png");
}

/*
#ne_10m_land
{
    polygon-fill: #011027;
}
*/

/*
#ne_10m_ocean
{
    polygon-fill: #000;
}
*/