diff --git a/.classpath b/.classpath
index 0ca188f..dec02b3 100644
--- a/.classpath
+++ b/.classpath
@@ -4,5 +4,6 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index f529511..573fa81 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -4,6 +4,7 @@
     <application android:icon="@drawable/icon" android:label="@string/app_name">
         <activity android:name=".X48"
                   android:label="@string/app_name"
+                  android:theme="@style/Theme.AppCompat"
                   android:configChanges="keyboardHidden|orientation" android:launchMode="singleTop"> <!-- |screenSize -->
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -15,7 +16,7 @@
 </activity>
 <activity android:name=".Settings" android:label="@string/choose_contrast_value"></activity>
 </application>
-    <uses-sdk android:minSdkVersion="4" android:targetSdkVersion="10"/>
+    <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="15"/>
     <supports-screens android:largeScreens="true" android:normalScreens="true" android:anyDensity="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true"></supports-screens>
 
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
diff --git a/project.properties b/project.properties
index 2e98c5f..bff6550 100644
--- a/project.properties
+++ b/project.properties
@@ -10,5 +10,6 @@
 # Indicates whether an apk should be generated for each density.
 split.density=false
 # Project target.
-target=android-10
+target=android-15
 apk-configurations=
+android.library.reference.1=../../../soft/android-sdk-linux_x86/extras/android/support/v7/appcompat