Issue #2872284: Added the varbase x-small emblem white logo to the admin...

Issue #2872284: Added the varbase x-small emblem white logo to the admin toolbar with the varbase/toolbar.icon library

css/admin-toolbar-tools.css

+.toolbar-icon-admin-toolbar-tools-help:before,
+.toolbar-icon-admin-toolbar-tools-help:active:before,
+.toolbar-icon-admin-toolbar-tools-help.active:before,
+.adminimal-admin-toolbar .toolbar-icon-admin-toolbar-tools-help:before,
+.adminimal-admin-toolbar .toolbar-icon-admin-toolbar-tools-help:active:before,
+.adminimal-admin-toolbar .toolbar-icon-admin-toolbar-tools-help.is-active:before,
+.adminimal-admin-toolbar .toolbar-tray-horizontal .menu-item--expanded:hover .toolbar-icon-admin-toolbar-tools-help:before,
+.adminimal-admin-toolbar .toolbar-icon-admin-toolbar-tools-help:hover:before {
+  background-image: url(../files/images/varbase-x-small-emblem-white.png);
+}

varbase.libraries.yml

+toolbar.icon:
+  css:
+    theme:
+      css/admin-toolbar-tools.css: {}

varbase.profile

@@ -228,3 +228,13 @@ function varbase_hide_warning_and_status_messages($hide) {
     unset($_SESSION['messages']);
   }
 }
+
+/**
+ * Implements hook_toolbar_alter().
+ */
+function varbase_toolbar_alter(&$items) {
+  if (\Drupal::currentUser()->hasPermission('access toolbar')
+    && !empty($items['admin_toolbar_tools'])) {
+    $items['admin_toolbar_tools']['#attached']['library'][] = 'varbase/toolbar.icon';
+  }
+}