wear settings same background as menu

wear/src/main/java/info/nightscout/androidaps/interaction/AAPSPreferences.java

@@ -2,7 +2,8 @@ package info.nightscout.androidaps.interaction;
 
 
 import android.os.Bundle;
-import android.preference.PreferenceActivity;
+import android.view.View;
+import android.view.ViewGroup;
 
 import info.nightscout.androidaps.R;
 import preference.WearPreferenceActivity;
@@ -13,6 +14,9 @@ public class AAPSPreferences extends WearPreferenceActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.preferences);
+        ViewGroup view = (ViewGroup)getWindow().getDecorView();
+        removeBackgroundRecursively(view);
+        view.setBackground(getResources().getDrawable(R.drawable.settings_background));
     }
 
     @Override
@@ -21,4 +25,15 @@ public class AAPSPreferences extends WearPreferenceActivity {
         finish();
     }
 
+    void removeBackgroundRecursively(View parent) {
+        if (parent instanceof ViewGroup) {
+            ViewGroup group = (ViewGroup)parent;
+            for (int i = 0; i < group.getChildCount(); i++) {
+                removeBackgroundRecursively(group.getChildAt(i));
+            }
+        }
+        parent.setBackground(null);
+    }
+
+
 }

wear/src/main/res/drawable/settings_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
+    <item>
+        <shape>
+            <solid android:color="@color/black"/>
+        </shape>
+    </item>
+
+    <item android:drawable="@drawable/nslogo_background" />
+
+
+</layer-list>