public function icon($icon = 'home', array $options = [])
    {
        $iconPref = $this->_configRead('iconPref');
        $_classes = [
            $this->_class(__FUNCTION__),
            $iconPref,
            $iconPref . '-' . $icon,
        ];

        $options = $this->_addClass($options, implode(' ', $_classes));
        $classes = $options['class'];
        unset($options['class']);

        $templater = $this->templater();
        return $templater->format(__FUNCTION__, [
            'class' => $classes,
            'attrs' => $templater->formatAttributes($options),
        ]);
    }