setTerminalTitle function
Implementation
void setTerminalTitle(String title) {
  if (!_isSupported || !_isTerminalCapable()) {
    return;
  }
  try {
    if (_originalTitle == null) {
      _captureOriginalTitle();
    }
    stdout.write('\x1b]2;$title\x07');
    stdout.write('\x1b]0;$title\x07');
  } catch (e) {
    _isSupported = false;
  }
}