Block/content styles not working for site branding block

Hi,

Sorry for the inconvenience but it working as expected.

In this case, some documentation or hook_form_alter needs to be done to avoid exposing options without effect.

It is by design because like with the block "page title" or the region "navigation collapsible" the wrapper printing attributes had been removed.

UI Suite Bootstrap templates:
- Page title block: https://git.drupalcode.org/project/ui_suite_bootstrap/-/blob/5.1.x/templ...
- Branding block: https://git.drupalcode.org/project/ui_suite_bootstrap/-/blob/5.1.x/templ...
- Navigation collapsible region: https://git.drupalcode.org/project/ui_suite_bootstrap/-/blob/5.1.x/templ...

For the region it was to be able to have flex CSS effect properly acting on the blocks in this region.

For the blocks, it was because Core itself does not provide those wrappers by default:
- Branding block: https://git.drupalcode.org/project/drupal/-/blob/11.x/core/modules/syste...
- Page title: https://git.drupalcode.org/project/drupal/-/blob/11.x/core/modules/syste...

Hopefully with https://www.drupal.org/project/display_builder → we will be able to have a page.html.twig completely site buildable, so no more need of region special cases, and also even less special cases of blocks.

Thanks very much for the info.

Am really looking forward to trying Display Builder, thanks for the link!