FontStyle

  FontStyle { 
      field MFString family       ["SERIF"]
      field SFBool   horizontal   TRUE
      field MFString justify      "BEGIN"
      field SFString language     ""
      field SFBool   leftToRight  TRUE
      field SFFloat  size         1.0          # (0,)
      field SFFloat  spacing      1.0          # [0,)
      field SFString style        "PLAIN"
      field SFBool   topToBottom  TRUE
    }