First draft, new basemap style

style.mss

@water: ;
@land: ;
@roads: ;
@buildings: ;

Map {
  background-color: #b8dee6;
}

#countries {
  polygon-fill: #0bcea8;
  polygon-opacity:1;
  /*image-filters:invert();*/
  /*polygon-pattern-file: url('../img/8 Seamless Paper Textures/Japanese Calligraphy Rice Paper.jpg');
*/}

#rds {
  ::halo {
    line-color:#00B990;
    line-smooth:3;
    line-join:round;
    /*line-comp-op:contrast;*/
    [AOTCLASS=1],[AOTCLASS>=40]{line-width:4;}
    [AOTCLASS=2],[AOTCLASS=30]{line-width:3;}
    [AOTCLASS=3]{line-width:0.2;}
    [AOTCLASS=4]{line-width:0.1;}
    [AOTCLASS>5][AOTCLASS<30]{line-width:0.1;}
  }
  ::main {
    line-color:#fdfcfd;
    line-smooth:3;
    line-opacity:0.8;
    line-join:round;
    line-comp-op:overlay;
    [AOTCLASS=1],[AOTCLASS>=40]{line-width:2.5;}
    [AOTCLASS=2],[AOTCLASS=30]{line-width:2;}
    [AOTCLASS=3]{line-width:0.2;}
    [AOTCLASS=4]{line-width:0.1;}
    [AOTCLASS>5][AOTCLASS<30]{line-width:0.05;}
    
  }
  ::labels {
    text-name:'[SN]';
    text-face-name:'By People Handwritten Regular';
    text-size:20;
    text-transform:uppercase;
    text-fill:#fff;
    text-character-spacing:2;
    text-dy:15;
    text-min-distance: 20000;
    text-placement:line;
    text-halo-fill:#2f2593;
    text-halo-radius:2;
    text-spacing:20000;
    text-clip:false;
  }
}


#prints {
  line-color:#aec9d9;
  line-smooth:0.1;
  line-width:0;
  polygon-opacity:0.7;
  polygon-fill:#fe8315;
  polygon-comp-op:invert;
}


#lake {
  line-color:#fff;
  polygon-pattern-file:url('../img/waterpaint.jpg');
  polygon-opacity:0;
  ::line1 {
    image-filters:agg-stack-blur(6,6);
    line-width:6;
    line-opacity:0.4;
  }
  /*::contour1 {
    line-offset:-2;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour2 {
    line-offset:-4;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour3 {
    line-offset:-8;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour4 {
    line-offset:-16;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour5 {
    line-offset:-32;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour6 {
    line-offset:-64;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour7 {
    line-offset:-120;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour8 {
    line-offset:-160;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour9 {
    line-offset:-200;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour10 {
    line-offset:-260;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour11 {
    line-offset:-340;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }
  ::contour12 {
    line-offset:-440;
    line-width:0.5;
    line-color:#fff;
    line-smooth:3;
    line-opacity:0.2;
  }*/
}

#nhd {
  polygon-pattern-file:url('../img/waterpaint.jpg');
  /*::line1 {
  	line-color:#fff;
  	image-filters:agg-stack-blur(6,6);
    line-width:6;
  	line-opacity:0.4;
  }*/
}


#terrain {
  line-color:#000;
  line-width:0.3;
  line-opacity:0.6;
}