diff -u b/core/profiles/demo_umami/config/install/block.block.breadcrumbs.yml b/core/profiles/demo_umami/config/install/block.block.breadcrumbs.yml
--- b/core/profiles/demo_umami/config/install/block.block.breadcrumbs.yml
+++ b/core/profiles/demo_umami/config/install/block.block.breadcrumbs.yml
@@ -5,7 +5,6 @@
     - system
   theme:
     - umami
-_core:
 id: breadcrumbs
 theme: umami
 region: breadcrumbs
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.default.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.default.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.default.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.default.yml
@@ -11,7 +11,6 @@
     - responsive_image
     - text
     - user
-_core:
 id: node.article.default
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.full.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.full.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.full.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.full.yml
@@ -12,7 +12,6 @@
     - responsive_image
     - text
     - user
-_core:
 id: node.article.full
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_bottom.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_bottom.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_bottom.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_bottom.yml
@@ -11,7 +11,6 @@
   module:
     - responsive_image
     - user
-_core:
 id: node.article.highlighted_bottom
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_small.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_small.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_small.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_small.yml
@@ -11,7 +11,6 @@
   module:
     - responsive_image
     - user
-_core:
 id: node.article.highlighted_small
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_top.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_top.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_top.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.highlighted_top.yml
@@ -11,7 +11,6 @@
   module:
     - responsive_image
     - user
-_core:
 id: node.article.highlighted_top
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.teaser.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.teaser.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.teaser.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.article.teaser.yml
@@ -12,7 +12,6 @@
     - responsive_image
     - text
     - user
-_core:
 id: node.article.teaser
 targetEntityType: node
 bundle: article
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.default.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.default.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.default.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.default.yml
@@ -20,7 +20,6 @@
     - responsive_image
     - text
     - user
-_core:
 id: node.recipe.default
 targetEntityType: node
 bundle: recipe
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_bottom.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_bottom.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_bottom.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_bottom.yml
@@ -19,7 +19,6 @@
   module:
     - responsive_image
     - user
-_core:
 id: node.recipe.highlighted_bottom
 targetEntityType: node
 bundle: recipe
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_small.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_small.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_small.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_small.yml
@@ -20,7 +20,6 @@
     - options
     - responsive_image
     - user
-_core:
 id: node.recipe.highlighted_small
 targetEntityType: node
 bundle: recipe
diff -u b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_top.yml b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_top.yml
--- b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_top.yml
+++ b/core/profiles/demo_umami/config/install/core.entity_view_display.node.recipe.highlighted_top.yml
@@ -19,7 +19,6 @@
   module:
     - responsive_image
     - user
-_core:
 id: node.recipe.highlighted_top
 targetEntityType: node
 bundle: recipe
diff -u b/core/profiles/demo_umami/config/install/views.view.frontpage.yml b/core/profiles/demo_umami/config/install/views.view.frontpage.yml
--- b/core/profiles/demo_umami/config/install/views.view.frontpage.yml
+++ b/core/profiles/demo_umami/config/install/views.view.frontpage.yml
@@ -8,7 +8,6 @@
   module:
     - node
     - user
-_core:
 id: frontpage
 label: Frontpage
 module: node
diff -u b/core/profiles/demo_umami/demo_umami.profile b/core/profiles/demo_umami/demo_umami.profile
--- b/core/profiles/demo_umami/demo_umami.profile
+++ b/core/profiles/demo_umami/demo_umami.profile
@@ -33,9 +33,9 @@
   // Add a warning about using an experimental profile.
   // @todo: This can be removed once a generic warning for experimental profiles has been introduced.
   // @see https://www.drupal.org/project/drupal/issues/2934374
-  $items['experimental-profile-warning'] = array(
+  $items['experimental-profile-warning'] = [
     '#type' => 'toolbar_item',
-    'tab' => array(
+    'tab' => [
       '#type' => 'inline_template',
       '#template' => '<a class="toolbar-warning" href="{{ more_info_link }}">This installation is for demonstration purposes only.</a>',
       '#context' => [
@@ -45,7 +45,7 @@
         'library' => ['demo_umami/toolbar-warning'],
       ],
-    ),
+    ],
     '#weight' => 999,
-  );
+  ];
   return $items;
 }
diff -u b/core/profiles/demo_umami/demo_umami_content/tests/src/Functional/UninstallDefaultContentTest.php b/core/profiles/demo_umami/demo_umami_content/tests/src/Functional/UninstallDefaultContentTest.php
--- b/core/profiles/demo_umami/demo_umami_content/tests/src/Functional/UninstallDefaultContentTest.php
+++ b/core/profiles/demo_umami/demo_umami_content/tests/src/Functional/UninstallDefaultContentTest.php
@@ -84,7 +84,7 @@
       ->count()
       ->execute();
     $this->assertGreaterThan(0, $count);
-    $nodes = $node_storage->loadByProperties(['title' => 'Cheesy smoked cod with mushrooms and pasta']);
+    $nodes = $node_storage->loadByProperties(['title' => 'Gluten free pizza']);
     $this->assertCount(1, $nodes);
   }
 
@@ -98,7 +98,7 @@
     // Verify that block is placed.
     $assert = $this->assertSession();
     $this->drupalGet('/recipes');
-    $assert->pageTextContains('Baked Camembert with garlic, calvados and salami');
+    $assert->pageTextContains('Super easy vegetarian pasta bake');
 
     $count = $block_storage->getQuery()
       ->condition('type', 'banner_block')
diff -u b/core/profiles/demo_umami/src/Plugin/Block/UmamiDisclaimer.php b/core/profiles/demo_umami/src/Plugin/Block/UmamiDisclaimer.php
--- b/core/profiles/demo_umami/src/Plugin/Block/UmamiDisclaimer.php
+++ b/core/profiles/demo_umami/src/Plugin/Block/UmamiDisclaimer.php
@@ -55,19 +55,19 @@
   public function blockForm($form, FormStateInterface $form_state) {
     $form = parent::blockForm($form, $form_state);
 
-    $form['umami_disclaimer'] = array(
+    $form['umami_disclaimer'] = [
       '#type' => 'text_format',
       '#title' => $this->t('Umami Disclaimer'),
       '#default_value' => $this->configuration['umami_disclaimer']['value'],
       '#format' => $this->configuration['umami_disclaimer']['format'],
-    );
+    ];
 
-    $form['umami_copyright'] = array(
+    $form['umami_copyright'] = [
       '#type' => 'text_format',
       '#title' => $this->t('Umami Copyright Text'),
       '#default_value' => $this->configuration['umami_copyright']['value'],
       '#format' => $this->configuration['umami_copyright']['format'],
-    );
+    ];
 
     return $form;
   }
diff -u b/core/profiles/demo_umami/src/Plugin/Block/UmamiFooterPromo.php b/core/profiles/demo_umami/src/Plugin/Block/UmamiFooterPromo.php
--- b/core/profiles/demo_umami/src/Plugin/Block/UmamiFooterPromo.php
+++ b/core/profiles/demo_umami/src/Plugin/Block/UmamiFooterPromo.php
@@ -50,35 +50,35 @@
   public function blockForm($form, FormStateInterface $form_state) {
     $form = parent::blockForm($form, $form_state);
 
-    $form['promo_title'] = array(
+    $form['promo_title'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Promo Title'),
       '#default_value' => $this->configuration['promo_title'],
-    );
+    ];
 
-    $form['promo_text'] = array(
+    $form['promo_text'] = [
       '#type' => 'textarea',
       '#title' => $this->t('Promo Text'),
       '#default_value' => $this->configuration['promo_text'],
-    );
+    ];
 
-    $form['findmore'] = array(
+    $form['findmore'] = [
       '#type' => 'fieldset',
       '#title' => $this->t('Find more'),
-    );
+    ];
 
-    $form['findmore']['url'] = array(
+    $form['findmore']['url'] = [
       '#type' => 'url',
       '#title' => $this->t('URL'),
       '#default_value' => $this->configuration['findmore_url'],
       '#description' => $this->t('Enter an absolute url. Eg: https://www.drupal.org'),
-    );
+    ];
 
-    $form['findmore']['text'] = array(
+    $form['findmore']['text'] = [
       '#type' => 'textfield',
       '#title' => $this->t('Text'),
       '#default_value' => $this->configuration['findmore_text'],
-    );
+    ];
 
     return $form;
   }
diff -u b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
--- b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
+++ b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
@@ -36,2 +36,3 @@
   }
+
 }