diff --git a/demo-app/src/main/res/values-night/themes.xml b/demo-app/src/main/res/values-night/themes.xml
index 22adeec3..c504dbbc 100644
--- a/demo-app/src/main/res/values-night/themes.xml
+++ b/demo-app/src/main/res/values-night/themes.xml
@@ -11,6 +11,7 @@
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">@color/yuki_dark_color</item>
+        <item name="android:navigationBarColor">@android:color/background_dark</item>
         <item name="android:windowLightStatusBar" tools:targetApi="m">false</item>
         <!-- Customize your theme here. -->
     </style>
diff --git a/demo-app/src/main/res/values/themes.xml b/demo-app/src/main/res/values/themes.xml
index d144bd38..ce639101 100644
--- a/demo-app/src/main/res/values/themes.xml
+++ b/demo-app/src/main/res/values/themes.xml
@@ -11,6 +11,7 @@
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">@color/yuki_light_color</item>
+        <item name="android:navigationBarColor">@android:color/background_light</item>
         <item name="android:windowLightStatusBar" tools:targetApi="m">true</item>
         <!-- Customize your theme here. -->
     </style>
diff --git a/demo-module/src/main/res/values-night/themes.xml b/demo-module/src/main/res/values-night/themes.xml
index 22adeec3..c504dbbc 100644
--- a/demo-module/src/main/res/values-night/themes.xml
+++ b/demo-module/src/main/res/values-night/themes.xml
@@ -11,6 +11,7 @@
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">@color/yuki_dark_color</item>
+        <item name="android:navigationBarColor">@android:color/background_dark</item>
         <item name="android:windowLightStatusBar" tools:targetApi="m">false</item>
         <!-- Customize your theme here. -->
     </style>
diff --git a/demo-module/src/main/res/values/themes.xml b/demo-module/src/main/res/values/themes.xml
index d144bd38..ce639101 100644
--- a/demo-module/src/main/res/values/themes.xml
+++ b/demo-module/src/main/res/values/themes.xml
@@ -11,6 +11,7 @@
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">@color/yuki_light_color</item>
+        <item name="android:navigationBarColor">@android:color/background_light</item>
         <item name="android:windowLightStatusBar" tools:targetApi="m">true</item>
         <!-- Customize your theme here. -->
     </style>