def get_color_label(self):
        """Text for colorbar label
        """
        if self.args.norm:
            return 'Normalized to {}'.format(self.args.norm)
        if len(self.units) == 1 and self.usetex:
            return r'ASD $\left({0}\right)$'.format(
                self.units[0].to_string('latex').strip('$'))
        elif len(self.units) == 1:
            return 'ASD ({0})'.format(self.units[0].to_string('generic'))
        return super(Spectrogram, self).get_color_label()
Text for colorbar label