1 files changed, 25 insertions, 0 deletions
diff --git a/core/modules/help/src/Hook/HelpThemeHooks.php b/core/modules/help/src/Hook/HelpThemeHooks.php
new file mode 100644
index 00000000000..431c7d089d2
--- /dev/null
+++ b/core/modules/help/src/Hook/HelpThemeHooks.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Drupal\help\Hook;
+
+use Drupal\Core\Hook\Attribute\Hook;
+
+/**
+ * Hook implementations for help.
+ */
+class HelpThemeHooks {
+  /**
+   * @file
+   */
+
+  /**
+   * Implements hook_preprocess_HOOK() for block templates.
+   */
+  #[Hook('preprocess_block')]
+  public function preprocessBlock(&$variables): void {
+    if ($variables['plugin_id'] == 'help_block') {
+      $variables['attributes']['role'] = 'complementary';
+    }
+  }
+
+}