Config: change panel slug + multiple options


I have a series of options within my config.php file, and am attempting to edit the panel url. However, when adding the slug option, it breaks my image srcset options (no error, but only the src image is output and srcset is blank in my img tag).

I couldnt find much info on this but wondering if my config file is formatted incorrectly?
Any help would be much appreciated.

Here’s my config.php:

return [
    'debug' => true,
    'panel' => [
      'slug' => 'my-custom-slug',
    'thumbs' => [
      'bin' => '/Applications/MAMP/Library/bin/convert',
      'driver' => 'im',
      'interlace' => true,
      'srcsets' => [
        'default' => [
          '640w' => ['width' => 640],
          '800w' => ['width' => 800],
          '1200w' => ['width' => 1200],
          '1440w' => ['width' => 1440]

Thanks in advance!

You forgot a closing bracket, should be

'panel' => [
      'slug' => 'my-custom-slug',

Thanks so much @texnixe! That solved it.

I had tried adding the closing bracket at the end on my options but I realize now how it should be formatted.

Thanks again.