Kdjykuj

This is my system.xml file:

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">

<system>

    <tab id="afteremail" translate="label" sortOrder="10">

        <label>Label</label>

    </tab>

    <section id="afteremail" translate="label" sortOrder="130" showInDefault="1" showInWebsite="1" showInStore="1">

        <class>separator-top</class>

        <label>After Email</label>

        <tab>afteremail</tab>

        <resource>Module_Vendor::afteremail_config</resource>

        <group id="general" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">

            <field id="display_text" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">

                <label>Display Text</label>

                <comment>This text will display on the all transactional emails.</comment>

            </field>

        </group>

    </section>

</system>

</config>

And config.xml:

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">

<default>

    <afteremail>

        <general>

            <display_text>Hello World</display_text>

        </general>

    </afteremail>

</default>

</config>

Helper Data.php

<?php



namespace VendorModuleHelper;



use MagentoFrameworkAppHelperAbstractHelper;

use MagentoStoreModelScopeInterface;



class Data extends AbstractHelper

{



const XML_PATH_AFTEREMAIL = 'afteremail/';



public function getConfigValue($field, $storeId = null)

{

    return $this->scopeConfig->getValue(

        $field, ScopeInterface::SCOPE_STORE, $storeId

    );

}



public function getGeneralConfig($code, $storeId = null)

{



    return $this->getConfigValue(self::XML_PATH_AFTEREMAIL .'general/'. $code, $storeId);

}



}

As well as Plugin.php

<?php



namespace VendorModulePlugin;



use MagentoEmailControllerAdminhtmlEmailTemplateDefaultTemplate;



class AddText

{

/**

 * @var MagentoFrameworkSerializeSerializerJson

 */

protected $serializer;



protected $helperData;



public function __construct(

    MagentoFrameworkSerializeSerializerJson $serializer,

    VendorModuleHelperData $helperData

) {

    $this->serializer = $serializer;

    $this->helperData = $helperData;

}



/**

 * @param DefaultTemplate $template

 * @param $result

 */

public function afterExecute(DefaultTemplate $template, $result)

{

    $displayText = $this->helperData->getGeneralConfig('display_text');

    /** @var MagentoFrameworkAppResponseHttp $response */

    $response = $template->getResponse();

    $body = $this->serializer->unserialize($response->getBody());



    $body['template_text'] .= PHP_EOL . PHP_EOL . $displayText;



    $response->representJson(

        $this->serializer->serialize($body)

    );

}

}

For now, additional text displays out of email container.
I want to achieve that it displays in the container.
Any suggestions on how to do that will be highly appreciated!
Thanks!