Using Gin Dark mode with CKEditor5 in Layout Builder

Not reproducible, please provide the screenshots and the steps to reproduce from installation.

Hmm, just tried it in a fresh site and also cannot reproduce. Must be something specific to this other project theme that is bleeding into layout builder and gin. Although not sure how it would prevent the gin variables from being set correctly.

In any case, closing due to not reproducing.

Oh, nope, doh, I was testing CKEditor4 and not CKEditor5. I can still reproduce this (in D9.5.x)
* Install and enable latest versions of `gin` and `gin_lb`
* Set Admin theme to Gin, and enable "Use Admin theme for editing content"
* In Gin Settings, set Appearance to Dark
* Enable CKEditor5
* Go into the Text formats and Editors config, select Basic HTML, set the editor to CKEditor5
* Create a content type that uses Layout Builder
* Create a page of that content type and go to Layout tab
* Add a Basic Block to the page. The sidebar config flyout will be in dark mode, but CKEditor5 will have a white background.

Adding patch for ckeditor in gin dark mode ,Please review.

I think there are some additional colors that need tweaking for dark mode. In addition to the toolbar background, the toolbar text color needs to be set, along with the background of the select drop-down fields (like heading)

@mpotter Adding patch with changes , please review

Not working with rc3. Probably in path need change selector from `.ui-dialog .ck` to `.ck`

The Gin theme should automatically load extended styles for CKEditor5, including dark mode support:

This works well when CKEditor5 fields are present on the initially loaded page. However, when these fields are dynamically added via an AJAX callback, the styles are not loaded for unknown reasons.

That's what helped me:

/**
 * Implements hook_library_info_alter().
 */
function YOUR_MODULE_library_info_alter(array &$libraries, string $extension): void {
  if ($extension == 'core') {
    $libraries['ckeditor5']['dependencies'][] = 'gin/ckeditor5';
  }
}