public static function enumFonts() {
        return [
            FontAwesomeIconInterface::FONT_AWESOME_FONT,
            FontAwesomeIconInterface::FONT_AWESOME_FONT_BOLD,
            FontAwesomeIconInterface::FONT_AWESOME_FONT_LIGHT,
            FontAwesomeIconInterface::FONT_AWESOME_FONT_REGULAR,
            FontAwesomeIconInterface::FONT_AWESOME_FONT_SOLID,
        ];
    }