Configuration/Icons.php
<?php
declare(strict_types=1);
use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
return [
'mail_logger' => [
'provider' => SvgIconProvider::class,
'source' => 'EXT:mail_logger/Resources/Public/Icons/Extension.svg',
],
'apps-pagetree-folder-contains-mail-templates' => [
'provider' => SvgIconProvider::class,
'source' => 'EXT:mail_logger/Resources/Public/Icons/MailTemplate.svg',
],
];