diff --git a/app/src/main/java/calculator/simplemobiletools/com/MyWidgetConfigure.java b/app/src/main/java/calculator/simplemobiletools/com/MyWidgetConfigure.java
index e625caad..a3375e92 100644
--- a/app/src/main/java/calculator/simplemobiletools/com/MyWidgetConfigure.java
+++ b/app/src/main/java/calculator/simplemobiletools/com/MyWidgetConfigure.java
@@ -1,12 +1,12 @@
 package calculator.simplemobiletools.com;
 
-import android.app.Activity;
 import android.appwidget.AppWidgetManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.Color;
 import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 import android.widget.RemoteViews;
 import android.widget.SeekBar;
@@ -15,7 +15,7 @@ import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
-public class MyWidgetConfigure extends Activity implements SeekBar.OnSeekBarChangeListener {
+public class MyWidgetConfigure extends AppCompatActivity implements SeekBar.OnSeekBarChangeListener {
     @Bind(R.id.btn_reset) View resetBtn;
     @Bind(R.id.config_seekbar) SeekBar seekBar;
     @Bind(R.id.config_calc) View background;
diff --git a/app/src/main/res/layout/widget_config.xml b/app/src/main/res/layout/widget_config.xml
index c16dd8a5..b6edd2f4 100644
--- a/app/src/main/res/layout/widget_config.xml
+++ b/app/src/main/res/layout/widget_config.xml
@@ -4,10 +4,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_centerHorizontal="true"
-    android:layout_marginBottom="80dp"
-    android:layout_marginLeft="@dimen/activity_margin"
-    android:layout_marginRight="@dimen/activity_margin"
-    android:layout_marginTop="80dp">
+    android:layout_margin="@dimen/activity_margin">
 
     <include
         android:id="@+id/config_calc"
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index c9610e20..ce8604df 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -17,10 +17,7 @@
     </style>
 
     <style name="MyWidgetConfigTheme" parent="@style/AppTheme">
-        <item name="android:windowIsTranslucent">true</item>
         <item name="android:windowBackground">@android:color/transparent</item>
-        <item name="android:windowContentOverlay">@null</item>
-        <item name="android:backgroundDimEnabled">false</item>
-        <item name="android:textColor">@android:color/white</item>
+        <item name="android:windowShowWallpaper">true</item>
     </style>
 </resources>