Add a border line between countries

[ducky]

[Lukáš Karas]

it can be added easily, just add to the stylesheet files something like this:

CONST
  COLOR countryBorderColor         = #ff0000;
  // ...
  
STYLE
  // ...

  [MAG continent-] {
    [TYPE boundary_country] WAY {color: @countryBorderColor; displayWidth: 0.4mm; dash: 3,7;}
    [TYPE boundary_country] AREA.BORDER {color: @countryBorderColor; width: 0.4mm; dash: 3,7;}
  }