natural

@water:#222;

#planetosmline{
[waterway!='']{
    line-color:@water;
    line-width:5;
    line-opacity:0.1;
    line-comp-op:minus;
    line-join:round;
    line-smooth:1;
    [waterway='river']{line-width:5;line-opacity:1;}
    [waterway='stream']{line-width:2;line-opacity:1;}
      [waterway='canal']{line-width:3;line-opacity:0.4;}
    [waterway='drain']{line-width:2;line-opacity:0.4;}
  
    }
}

#planetosmpolygon{
  [natural='water'],[waterway='riverbank'],[landuse='reservoir'],[waterway='dock']{
    polygon-fill:@water;
    polygon-comp-op:minus;
    }
  [natural='wetland']{
    polygon-fill:@water;
    polygon-comp-op:minus;
    polygon-opacity:0.5;
    }
  [landuse='grass'],[landuse='forest'],[natural='scrub'],[natural='wood'],[landuse='cemetery']{
     polygon-fill:#658d00;
    polygon-opacity:0.4;
    polygon-comp-op:darken;
  }
  }