diff --git a/public/eventSpecificCss/stylesNavigamus25.css b/public/eventSpecificCss/stylesNavigamus25.css
new file mode 100755
index 00000000..efccd421
--- /dev/null
+++ b/public/eventSpecificCss/stylesNavigamus25.css
@@ -0,0 +1,13 @@
+@media (prefers-color-scheme: light) {
+    :root {
+        --color-main: #204c68;
+        --color-accent: #B72225;
+    }
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        --color-main: #57A0AD;
+        --color-accent: #EE2542;
+    }
+}
diff --git a/public/logo_navigamus25_trans_bg_168.png b/public/logo_navigamus25_trans_bg_168.png
new file mode 100644
index 00000000..2d118456
Binary files /dev/null and b/public/logo_navigamus25_trans_bg_168.png differ
diff --git a/src/Event/EventType/Navigamus/EventTypeNavigamus.php b/src/Event/EventType/Navigamus/EventTypeNavigamus.php
index 01890a96..28cf16cb 100755
--- a/src/Event/EventType/Navigamus/EventTypeNavigamus.php
+++ b/src/Event/EventType/Navigamus/EventTypeNavigamus.php
@@ -49,8 +49,23 @@ public function getTranslationFilePaths(): array
         ];
     }
 
-    public function isUnlockExpiredButtonAllowed(): bool
+    /**
+     * @inheritDoc
+     */
+    #[\Override]
+    public function getStylesheetNameWithoutLeadingSlash(): string
     {
-        return true;
+        return 'eventSpecificCss/stylesNavigamus25.css';
+    }
+
+    /**
+     * @inheritDoc
+     */
+    #[\Override]
+    public function getLanguages(): array
+    {
+        return [
+            'cs' => '🇨🇿 Česky',
+        ];
     }
 }