UnitSettings

"""How measurements are shown."""
type UnitSettings {
  """
  Unit every length is shown and typed in: finished and sheet sizes, bleed, gutters and imposing margins. Stored values keep their own unit. Defaults to millimetres.
  """
  lengthUnit: LengthUnit!
  """Last save of this section; null until someone saves it."""
  lastChange: SettingsChange
}