public function init_form_fields() {
			/* translators: %s: list of placeholders */
			$placeholder_text  = sprintf( __( 'Available placeholders: %s', 'woocommerce' ), '<code>' . esc_html( implode( '</code>, <code>', array_keys( $this->placeholders ) ) ) . '</code>' );
			$this->form_fields = array(
				'enabled'            => array(
					'title'   => __( 'Enable/Disable', 'woocommerce' ),
					'type'    => 'checkbox',
					'label'   => __( 'Enable this email notification', 'woocommerce' ),
					'default' => 'yes',
				),
				'recipient'          => array(
					'title'       => __( 'Recipient(s)', 'woocommerce' ),
					'type'        => 'text',
					/* translators: %s: WP admin email */
					'description' => sprintf( __( 'Enter recipients (comma separated) for this email. Defaults to %s.', 'woocommerce' ), '<code>' . esc_attr( get_option( 'admin_email' ) ) . '</code>' ),
					'placeholder' => '',
					'default'     => '',
					'desc_tip'    => true,
				),
				'subject'            => array(
					'title'       => __( 'Subject', 'woocommerce' ),
					'type'        => 'text',
					'desc_tip'    => true,
					'description' => $placeholder_text,
					'placeholder' => $this->get_default_subject(),
					'default'     => '',
				),
				'heading'            => array(
					'title'       => __( 'Email heading', 'woocommerce' ),
					'type'        => 'text',
					'desc_tip'    => true,
					'description' => $placeholder_text,
					'placeholder' => $this->get_default_heading(),
					'default'     => '',
				),
				'additional_content' => array(
					'title'       => __( 'Additional content', 'woocommerce' ),
					'description' => __( 'Text to appear below the main email content.', 'woocommerce' ) . ' ' . $placeholder_text,
					'css'         => 'width:400px; height: 75px;',
					'placeholder' => __( 'N/A', 'woocommerce' ),
					'type'        => 'textarea',
					'default'     => $this->get_default_additional_content(),
					'desc_tip'    => true,
				),
				'email_type'         => array(
					'title'       => __( 'Email type', 'woocommerce' ),
					'type'        => 'select',
					'description' => __( 'Choose which format of email to send.', 'woocommerce' ),
					'default'     => 'html',
					'class'       => 'email_type wc-enhanced-select',
					'options'     => $this->get_email_type_options(),
					'desc_tip'    => true,
				),
			);
		}