Issue #3479462 by mabho: Create a new permission to limit the user roles that can see the debugger

visual_debugger.module

@@ -53,13 +53,21 @@ function visual_debugger_page_attachments(array &$attachments): void {
   $use_on_frontend = $config->get(VisualDebuggerConstants::IS_FRONTEND_KEY);
   $use_on_admin = $config->get(VisualDebuggerConstants::IS_ADMIN_KEY);
 
-  // Checking one of these possibilities:
+  // Get the current user service.
+  $current_user = \Drupal::currentUser();
+  $has_permission = $current_user->hasPermission('view visual_debugger panel');
+
+  // Validates if user has permission to view the Visual Debugger panel, and
+  // checks for one of these possibilities:
   // - This is an Admin page, and debugger is activated for admin theme.
   // - This is a frontend page, and debugger is activated for frontend theme.
   if (
+    $has_permission &&
+    (
       ($is_admin_theme && $use_on_admin)
       ||
       (!$is_admin_theme && $use_on_frontend)
+    )
   ) {
     // Attach the library.
     $attachments['#attached']['library'][] = 'visual_debugger/visual_debugger';

visual_debugger.permissions.yml

 administer visual_debugger configuration:
-  title: "Administer visual_debugger configuration"
-  description: "Optional description."
-  restrict access: true
+  title: "Administer the Visual Debugger configuration"
+  restrict access: false
+view visual_debugger panel:
+  title: "View the Visual Debugger panel"
+  restrict access: false