diff --git a/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
index a9380d6..fb50735 100644
--- a/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
+++ b/core/profiles/demo_umami/tests/src/Functional/DemoUmamiProfileTest.php
@@ -110,4 +110,16 @@ public function testEditNodesByAdmin() {
     $webassert->pageTextContains('Recipe Deep mediterranean quiche has been updated.');
   }
 
+  /**
+   * Tests that the Umami theme is the default theme on the Appearance page.
+   */
+  public function testAppearance() {
+    $account = $this->drupalCreateUser(['administer themes']);
+    $this->drupalLogin($account);
+    $webassert = $this->assertSession();
+
+    $this->drupalGet('admin/appearance');
+    $webassert->pageTextMatches('/Umami\s+\(default theme\)/');
+  }
+
 }
diff --git a/core/profiles/demo_umami/themes/umami/umami.info.yml b/core/profiles/demo_umami/themes/umami/umami.info.yml
index 3a70cc6..b65a67a 100644
--- a/core/profiles/demo_umami/themes/umami/umami.info.yml
+++ b/core/profiles/demo_umami/themes/umami/umami.info.yml
@@ -3,7 +3,6 @@ type: theme
 base theme: classy
 description: 'The theme used for the out of the box initiative.'
 core: 8.x
-hidden: true
 libraries:
   - umami/global
   - umami/messages