ext_emconf.php

<?php

$EM_CONF[$_EXTKEY] = [
    'title' => 'Headertypes for Content Elements',
    'description' => 'Add a separate header type field to tt_content for headers and subheaders',
    'category' => 'fe',
    'author' => 'b13 GmbH',
    'author_email' => 'typo3@b13.com',
    'author_company' => 'b13 GmbH, Stuttgart',
    'state' => 'stable',
    'version' => '1.0.0',
];