diff --git a/app/src/main/res/color/nav.xml b/app/src/main/res/color/nav.xml
index e8c22ee27..b00aa46bf 100644
--- a/app/src/main/res/color/nav.xml
+++ b/app/src/main/res/color/nav.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:color="@color/accent" android:state_checked="true" />
-    <item android:color="@color/white" android:state_checked="false" />
+    <item android:color="@color/black_50" android:state_checked="false" />
 </selector>
\ No newline at end of file
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java
index a28150218..b98767ecf 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java
@@ -65,12 +65,7 @@ public class MainActivity extends BaseActivity implements NavigationBarView.OnIt
         mManager = new FragmentStateManager(mBinding.container, getSupportFragmentManager()) {
             @Override
             public Fragment getItem(int position) {
-                switch (position) {
-                    case 0:
-                        return VodFragment.newInstance();
-                    default:
-                        return SettingFragment.newInstance();
-                }
+                return position == 0 ? VodFragment.newInstance() : SettingFragment.newInstance();
             }
         };
         if (savedInstanceState == null) mManager.change(0);
diff --git a/app/src/mobile/res/layout/activity_main.xml b/app/src/mobile/res/layout/activity_main.xml
index 71d5af32a..7e58eedcc 100644
--- a/app/src/mobile/res/layout/activity_main.xml
+++ b/app/src/mobile/res/layout/activity_main.xml
@@ -16,7 +16,7 @@
         android:layout_width="match_parent"
         android:layout_height="56dp"
         android:layout_alignParentBottom="true"
-        android:background="@color/transparent"
+        android:background="@color/white_10"
         app:elevation="0dp"
         app:itemIconTint="@color/nav"
         app:itemTextColor="@color/white"
diff --git a/app/src/mobile/res/layout/dialog_control.xml b/app/src/mobile/res/layout/dialog_control.xml
index 48ebf8341..c1d635dee 100644
--- a/app/src/mobile/res/layout/dialog_control.xml
+++ b/app/src/mobile/res/layout/dialog_control.xml
@@ -10,7 +10,7 @@
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="倍速"
+        android:text="@string/control_speed"
         android:textColor="@color/black"
         android:textSize="16sp" />
 
@@ -32,7 +32,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="8dp"
-        android:text="縮放"
+        android:text="@string/control_scale"
         android:textColor="@color/black"
         android:textSize="16sp" />
 
@@ -112,7 +112,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
         android:layout_marginBottom="8dp"
-        android:text="播放"
+        android:text="@string/play"
         android:textColor="@color/black"
         android:textSize="16sp" />
 
@@ -177,7 +177,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
         android:layout_marginBottom="8dp"
-        android:text="軌道"
+        android:text="@string/control_track"
         android:textColor="@color/black"
         android:textSize="16sp"
         android:visibility="gone"
diff --git a/app/src/mobile/res/layout/dialog_history.xml b/app/src/mobile/res/layout/dialog_history.xml
index 5c71ec7bf..29632553f 100644
--- a/app/src/mobile/res/layout/dialog_history.xml
+++ b/app/src/mobile/res/layout/dialog_history.xml
@@ -6,4 +6,4 @@
     android:layout_height="wrap_content"
     android:padding="16dp"
     app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-    app:maxHeight="296dp" />
\ No newline at end of file
+    app:maxHeight="352dp" />
\ No newline at end of file
diff --git a/app/src/mobile/res/values-zh-rCN/strings.xml b/app/src/mobile/res/values-zh-rCN/strings.xml
index 76f340684..df6ace70b 100644
--- a/app/src/mobile/res/values-zh-rCN/strings.xml
+++ b/app/src/mobile/res/values-zh-rCN/strings.xml
@@ -20,6 +20,11 @@
     <string name="detail_content">简介</string>
     <string name="detail_search">快搜“<xliff:g name="name">%s</xliff:g>”</string>
 
+    <!-- Control -->
+    <string name="control_speed">倍速</string>
+    <string name="control_scale">缩放</string>
+    <string name="control_track">轨道</string>
+
     <!-- Dialog -->
     <string name="dialog_delete_record">删除全部纪录？</string>
     <string name="dialog_delete_keep">收藏纪录将会全部删除。</string>
diff --git a/app/src/mobile/res/values-zh-rTW/strings.xml b/app/src/mobile/res/values-zh-rTW/strings.xml
index 8da9806d9..3f8c7f3a8 100644
--- a/app/src/mobile/res/values-zh-rTW/strings.xml
+++ b/app/src/mobile/res/values-zh-rTW/strings.xml
@@ -20,6 +20,11 @@
     <string name="detail_content">簡介</string>
     <string name="detail_search">快搜「<xliff:g name="name">%s</xliff:g>」</string>
 
+    <!-- Control -->
+    <string name="control_speed">倍速</string>
+    <string name="control_scale">縮放</string>
+    <string name="control_track">軌道</string>
+
     <!-- Dialog -->
     <string name="dialog_delete_record">刪除全部紀錄？</string>
     <string name="dialog_delete_keep">收藏紀錄將會全部刪除。</string>
diff --git a/app/src/mobile/res/values/strings.xml b/app/src/mobile/res/values/strings.xml
index 384181b27..4c61cde2d 100644
--- a/app/src/mobile/res/values/strings.xml
+++ b/app/src/mobile/res/values/strings.xml
@@ -20,6 +20,11 @@
     <string name="detail_content">Summary</string>
     <string name="detail_search">Searching <xliff:g name="name">%s</xliff:g></string>
 
+    <!-- Control -->
+    <string name="control_speed">Speed</string>
+    <string name="control_scale">Scale</string>
+    <string name="control_track">Track</string>
+
     <!-- Dialog -->
     <string name="dialog_delete_record">Delete all records?</string>
     <string name="dialog_delete_keep">All keep records will be removed.</string>