Why don't I see the colorbutton plugin in CKEditor?

Question

I installed the Colorbutton module and its composer dependencies:

"drupal/colorbutton": "^1",
"drupal-ckeditor-libraries-group/colorbutton": "^4.14",
"drupal-ckeditor-libraries-group/panelbutton": "^4.14",

I then enabled the module, configured the Basic HTML text form, and added the new buttons to my toolbar.

However, I don't see the buttons as an authenticated user (admin or regular authenticated user).

I rebuilt the Drupal cache, cleared the browser cache... Still the same problem.

How do I display the color buttons?

Answer 1

By default, Basic HTML strips <span style> attributes, which CKEditor uses to apply color.

On /admin/config/content/formats/manage/basic_html, if you add <span style> to the Allowed HTML Tags, the buttons will be displayed.