Adding Custom icon paths in config/twill.php without repeaters and blocks section

[phyce]

At the moment when trying to add block_editor.directories.source.icons as explained in https://twillcms.com/docs/block-editor/creating-a-block-editor.html#content-using-custom-icons is not possible without defining 'repeaters' and 'blocks'.

if we add these as empty arrays the errors stop appearing, but then content blocks disappear from the CMS. I assume this is also the case with repeaters.

Current workaround I found is by copying the default configuration for both repeaters and blocks as provided in:
https://twillcms.com/docs/block-editor/default-configuration.html

Steps to reproduce

define config/twill.php as following:

<?php

return [
    'block_editor' => [
        'directories' => [
            'source' => [
                'icons' => [
                    base_path('vendor/area17/twill/frontend/icons'),
                    resource_path('assets/admin/icons'), // or any other path of your choice
                ],
            ],
        ],
    ],
];

Expected result

Config should work without needing 'repeaters' or 'blocks'.

Actual result

We get the following error:
foreach() argument must be of type array|object, null given

Versions

Twill 3.4.1
Laravel 11.41.3
PHP 8.2.27
MariaDB 11.6

[phyce]

Also looks like icons don't actually show up in the CMS, even though they get listed using
php artisan twill:list:icons
and the icons can be seen when previewing in /admin/admin/icons