diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 46719ef..c3b97c6 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest
-    package="com.simplemobiletools.flashlight"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.simplemobiletools.flashlight">
 
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-permission android:name="android.permission.FLASHLIGHT"/>
@@ -19,7 +19,7 @@
         <activity
             android:name=".activities.MainActivity"
             android:screenOrientation="portrait"
-            android:theme="@style/BlackSplashScreen">
+            android:theme="@style/BlackSplashScreen.Dark">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
diff --git a/app/src/main/java/com/simplemobiletools/flashlight/activities/MainActivity.java b/app/src/main/java/com/simplemobiletools/flashlight/activities/MainActivity.java
index ea28f76..6307dc5 100644
--- a/app/src/main/java/com/simplemobiletools/flashlight/activities/MainActivity.java
+++ b/app/src/main/java/com/simplemobiletools/flashlight/activities/MainActivity.java
@@ -8,6 +8,7 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.ImageView;
+import android.widget.SeekBar;
 
 import com.simplemobiletools.flashlight.BusProvider;
 import com.simplemobiletools.flashlight.Config;
@@ -26,6 +27,7 @@ public class MainActivity extends SimpleActivity {
     @BindView(R.id.toggle_btn) ImageView mToggleBtn;
     @BindView(R.id.bright_display_btn) ImageView mBrightDisplayBtn;
     @BindView(R.id.stroboscope_btn) ImageView mStroboscopeBtn;
+    @BindView(R.id.stroboscope_bar) SeekBar mStroboscopeBar;
 
     private static Bus mBus;
     private static MyCameraImpl mCameraImpl;
@@ -111,6 +113,10 @@ public class MainActivity extends SimpleActivity {
     protected void onDestroy() {
         super.onDestroy();
         Config.newInstance(getApplicationContext()).setIsFirstRun(false);
+        releaseCamera();
+    }
+
+    private void releaseCamera() {
         if (mCameraImpl != null) {
             mCameraImpl.releaseCamera();
             mCameraImpl = null;
diff --git a/app/src/main/java/com/simplemobiletools/flashlight/activities/SimpleActivity.java b/app/src/main/java/com/simplemobiletools/flashlight/activities/SimpleActivity.java
index 828f1ad..da3166d 100644
--- a/app/src/main/java/com/simplemobiletools/flashlight/activities/SimpleActivity.java
+++ b/app/src/main/java/com/simplemobiletools/flashlight/activities/SimpleActivity.java
@@ -16,7 +16,7 @@ public class SimpleActivity extends AppCompatActivity {
         mConfig = Config.newInstance(getApplicationContext());
         int theme = mConfig.getIsDarkTheme() ? R.style.AppTheme_Dark : R.style.AppTheme;
         if (this instanceof MainActivity) {
-            theme = mConfig.getIsDarkTheme() ? R.style.BlackSplashScreen_Dark : R.style.BlackSplashScreen;
+            theme = R.style.BlackSplashScreen_Dark;
         }
         setTheme(theme);
         super.onCreate(savedInstanceState);
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 0c6477f..a4a76d3 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -11,26 +11,33 @@
 
     <ImageView
         android:id="@+id/toggle_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        android:layout_width="@dimen/main_button_size"
+        android:layout_height="@dimen/main_button_size"
         android:src="@drawable/circles_big"/>
 
     <ImageView
         android:id="@+id/bright_display_btn"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/bright_display_margin"
+        android:layout_marginTop="@dimen/buttons_margin"
         android:padding="@dimen/activity_margin"
-        android:src="@mipmap/bright_display"
-        android:visibility="gone"/>
+        android:src="@mipmap/bright_display"/>
 
     <ImageView
         android:id="@+id/stroboscope_btn"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/bright_display_margin"
+        android:layout_marginTop="@dimen/buttons_margin"
         android:padding="@dimen/activity_margin"
-        android:src="@mipmap/bright_display"
-        android:visibility="gone"/>
+        android:src="@mipmap/bright_display"/>
+
+    <SeekBar
+        android:id="@+id/stroboscope_bar"
+        android:layout_width="@dimen/seekbar_width"
+        android:layout_height="wrap_content"
+        android:layout_margin="@dimen/activity_margin"
+        android:paddingBottom="@dimen/seekbar_vertical_padding"
+        android:paddingTop="@dimen/seekbar_vertical_padding"
+        android:visibility="invisible"/>
 
 </LinearLayout>
diff --git a/app/src/main/res/layout/activity_settings.xml b/app/src/main/res/layout/activity_settings.xml
index b3e818d..136c3ab 100644
--- a/app/src/main/res/layout/activity_settings.xml
+++ b/app/src/main/res/layout/activity_settings.xml
@@ -77,7 +77,7 @@
                 android:layout_height="wrap_content"
                 android:layout_centerVertical="true"
                 android:paddingLeft="@dimen/settings_padding"
-                android:text="@string/stroboscope"/>
+                android:text="@string/show_stroboscope"/>
 
             <android.support.v7.widget.SwitchCompat
                 android:id="@+id/settings_stroboscope"
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 470d562..e370b8b 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -8,7 +8,7 @@
     <string name="settings">Einstellungen</string>
     <string name="dark_theme">Dunkles Thema</string>
     <string name="bright_display">Zeige Knopf für helles Display</string>
-    <string name="stroboscope">Show a stroboscope button</string>
+    <string name="show_stroboscope">Show a stroboscope button</string>
 
     <!-- About -->
     <string name="about">Über</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index bb9a47d..1afc280 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -8,7 +8,7 @@
     <string name="settings">Impostazioni</string>
     <string name="dark_theme">Tema scuro</string>
     <string name="bright_display">Mostra un pulsante per schermo luminoso</string>
-    <string name="stroboscope">Show a stroboscope button</string>
+    <string name="show_stroboscope">Show a stroboscope button</string>
 
     <!-- About -->
     <string name="about">Informazioni</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 5fbbee9..1377d96 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -8,7 +8,7 @@
     <string name="settings">設定</string>
     <string name="dark_theme">ダークテーマ</string>
     <string name="bright_display">Show a bright display button</string>
-    <string name="stroboscope">Show a stroboscope button</string>
+    <string name="show_stroboscope">Show a stroboscope button</string>
 
     <!-- About -->
     <string name="about">アプリについて</string>
diff --git a/app/src/main/res/values-sv/strings.xml b/app/src/main/res/values-sv/strings.xml
index e6c83e7..8b2bd3a 100644
--- a/app/src/main/res/values-sv/strings.xml
+++ b/app/src/main/res/values-sv/strings.xml
@@ -8,7 +8,7 @@
     <string name="settings">Inställningar</string>
     <string name="dark_theme">Mörkt tema</string>
     <string name="bright_display">Show a bright display button</string>
-    <string name="stroboscope">Show a stroboscope button</string>
+    <string name="show_stroboscope">Show a stroboscope button</string>
 
     <!-- About -->
     <string name="about">Om</string>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index ab60650..0ee4adf 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -1,9 +1,12 @@
 <resources>
     <dimen name="activity_margin">16dp</dimen>
-    <dimen name="bright_display_margin">40dp</dimen>
+    <dimen name="buttons_margin">30dp</dimen>
     <dimen name="social_padding">8dp</dimen>
     <dimen name="social_logo">40dp</dimen>
     <dimen name="settings_padding">8dp</dimen>
+    <dimen name="seekbar_width">250dp</dimen>
+    <dimen name="seekbar_vertical_padding">6dp</dimen>
+    <dimen name="main_button_size">150dp</dimen>
 
     <dimen name="normal_text_size">14sp</dimen>
     <dimen name="config_text_size">18sp</dimen>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 550bb0f..29e6768 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -8,7 +8,7 @@
     <string name="settings">Settings</string>
     <string name="dark_theme">Dark theme</string>
     <string name="bright_display">Show a bright display button</string>
-    <string name="stroboscope">Show a stroboscope button</string>
+    <string name="show_stroboscope">Show a stroboscope button</string>
 
     <!-- About -->
     <string name="about">About</string>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 7cad609..ed34ff0 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -17,10 +17,6 @@
         <item name="android:windowBackground">@android:color/black</item>
     </style>
 
-    <style name="BlackSplashScreen" parent="AppTheme">
-        <item name="android:windowBackground">@null</item>
-    </style>
-
     <style name="BlackSplashScreen.Dark" parent="AppTheme.Dark">
         <item name="android:windowBackground">@null</item>
     </style>