ext_emconf.php

<?php
$EM_CONF[$_EXTKEY] = [
    'title' => 'Icon Check: show registered icons',
    'description' => 'Backend module for listing (all) registered icons within your TYPO3 instance. Useful for integrators/developers which making there TYPO3 backends bright and shiny.',
    'category' => 'be',
    'author' => 'Josef Glatz',
    'author_email' => 'jousch@gmail.com',
    'author_company' => 'josefglatz.at',
    'state' => 'stable',
    'version' => '3.0.0',
    'constraints' => [
        'depends' => [
            'typo3' => '12.4-12.4.999',
        ],
    ],
];