Display plus sign once on inline block create button with Stable9 theme

I've tested this with just core and I haven't been able to replicate this. Do you have a custom theme or contributed themes/modules that might be interferring here?

Our team was also able to determine that this does not happen on a standard Drupal installation, and have isolated code in a custom theme that seems to be triggering it. Closing this issue as "Works as designed."

Additional information on this. The problem is triggered when the Stable 9 theme is used. Updating the steps to reproduce in this issue, and re-opening as "Active."

Patch removes extraneous styling for inline block create button in stable9 theme.

Think some before/after screenshots would be useful for an issue like this.

I re-rolled the patch against drupal/drupal, rather than drupal/core. Before and after screenshots attached.

I was able to reproduce the issue:

1. Drupal 10.1.x-dev
2. Setting Stable 9 as the active theme via config-set system.theme default stable9
3. Enable layout_builder
4. Set the page node type display to use Layout Builder and to allow overrides on individual nodes.
5. Create a node of type "page" and use Layout Builder, clicking "Add block".

I verified that the patch in #8 removes the duplicated plus sign.

I also agree with the rationale of removing this declaration from Stable9, since the Layout Builder module is providing default styling for this plus sign and there is no reason for Stable9 to override it. This clearly was just legacy CSS that wasn't cleaned up with the update to Drupal 10 and changes in the Layout Builder module.

Marking as "Reviewed and Tested by the Community."

Switching back to bug report since there is a patch that needs committing.

Just a title change.

Committed 7e5b073 and pushed to 11.x. Thanks!

Back-ported to 10.1.x

Automatically closed - issue fixed for 2 weeks with no activity.