backupLocale property
      
      Locale?
      get
      backupLocale
      
    
    
Supply the 'backup' Locale if any.
Implementation
static Locale? get backupLocale {
  if (_backupLocale == null) {
    if (supportedLocales.length > 1) {
      // Assume the second Locale a suitable backup.
      _backupLocale = _supportedLocales[1];
    } else {
      _backupLocale = locale;
    }
  }
  return _backupLocale;
}
      
      set
      backupLocale
      (Locale? locale) 
      
    
    
    
Implementation
static set backupLocale(Locale? locale) {
  if (locale != null) {
    // Only assign once.
    _backupLocale ??= locale;
  }
}