diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 016c75c..aaab359 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -13,7 +13,7 @@
         android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.Acanthus.Dark"
+        android:theme="@style/Theme.Acanthus"
         android:usesCleartextTraffic="true">
         <activity android:name=".views.animation.AnimationActivity"></activity>
         <activity android:name=".views.animation_detail.AnimationDetailActivity"></activity>
diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/MainActivity.java b/app/src/main/java/org/ntlab/acanthus_client/views/MainActivity.java
index 439934e..cde184d 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/MainActivity.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/MainActivity.java
@@ -23,7 +23,7 @@
         super.onCreate(savedInstanceState);
 
         binding = ActivityMainBinding.inflate(getLayoutInflater());
-        setTheme(R.style.Theme_Acanthus_Dark);
+        setTheme(R.style.Theme_Acanthus);
         setContentView(binding.getRoot());
 
         BottomNavigationView navView = findViewById(R.id.nav_view);
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index f8c6127..190abda 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -6,5 +6,6 @@
     <color name="teal_200">#FF03DAC5</color>
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
+    <color name="silver">#c0c0c0</color>
     <color name="white">#FFFFFFFF</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 4888220..ea59ed3 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,8 +1,8 @@
 <resources>
     <!-- Base application theme. -->
-    <style name="Theme.Acanthus" parent="Theme.AppCompat.Light"/>
-    <style name="Theme.Acanthus.Dark" parent="Theme.AppCompat">
-        <item name="android:navigationBarColor">@color/white</item>
+    <style name="Theme.Acanthus" parent="Theme.AppCompat.Light">
+        <item name="colorPrimary">@color/silver</item>
     </style>
+    <style name="Theme.Acanthus.Dark" parent="Theme.AppCompat"/>
     <style name="AppTheme.NoTitleBar" parent="Theme.AppCompat.NoActionBar"/>
 </resources>
\ No newline at end of file