public function settings( $settings ) {
		$email_settings = [
			'tribe_ticket_email_heading' => [
				'id' => 'tribe_ticket_email_heading',
				'name' => '<strong>' . esc_html( sprintf( __( 'Tribe %s Emails', 'event-tickets-plus' ), tribe_get_ticket_label_singular( 'edd_email_heading_name' ) ) ) . '</strong>',
				'desc' => esc_html( sprintf( __( 'Configure the %s receipt emails', 'event-tickets-plus' ), tribe_get_ticket_label_singular_lowercase( 'edd_email_heading_desc' ) ) ),
				'type' => 'header',
			],
			'ticket_subject' => [
				'id' => 'ticket_subject',
				'name' => esc_html( sprintf( __( '%s Email Subject', 'event-tickets-plus' ), tribe_get_ticket_label_plural( 'edd_email_subject_name' ) ) ),
				'desc' => esc_html( sprintf( __( 'Enter the subject line for the %s receipt email', 'event-tickets-plus' ), tribe_get_ticket_label_plural_lowercase( 'edd_email_subject_desc' ) ) ),
				'type' => 'text',
				'std'  => $this->default_subject,
			],
		];

		return array_merge( $settings, $email_settings );
	}