ckeditor5_table_cell_properties and ckeditor5_table_properties do not work properly for setting a defaultProperties value in the configuration.

Note that for ckeditor5_table changing property does actually reflect after saving and works normally

https://www.drupal.org/forum/support/post-installation/2023-10-19/how-ca... →

/**
 * Implements hook_ckeditor5_plugin_info_alter().
 */
function ckeditor_config_ckeditor5_plugin_info_alter(array &$plugin_definitions) {
  if (isset($plugin_definitions['ckeditor5_table'])) {
    $table_plugin_definition = $plugin_definitions['ckeditor5_table']->toArray();
    $table_plugin_definition['ckeditor5']['config']['table']['defaultHeadings'] = [
      'rows' => 1,
      'columns' => 0,
    ];
    $plugin_definitions['ckeditor5_table'] = new CKEditor5PluginDefinition($table_plugin_definition);
  }
}

I was doing some research into adding the defaultHeadings and came across that link you posted @ahmad-khader and was curious if adding a default 'rows' => 1, is a good idea to core or not. In doing accessibility testing, some testing tools will report a warning that the table is a layout table, and not a data table, reducing accessible tables.

I had thought we could include this in the standard profile (soon to be recipe), but I played with the config and could not get it to work:

In editor.editor.basic_html.yml config, I see the following structure:

settings:
  plugins:
    ckeditor5_heading:

And so I thought I could follow that by adding the defaultHeadings to it. I tried many different iterations but could not get it to recognize it. So:

1. Is config the way to go with this? (I assume so as that makes the most sense to me) and if so:
2. Does anyone know how to add to the config these defaultHeadings so they will work?

Thanks!