use dialogwhenlarge theme for image pager

org.fox.ttrss/src/main/AndroidManifest.xml

@@ -254,6 +254,7 @@
 
         <activity
             android:name=".ArticleImagesPagerActivity"
+            android:theme="@style/ImagePagerTheme"
             android:label="Article Images" >
         </activity>
 

org.fox.ttrss/src/main/java/org/fox/ttrss/ArticleImagesPagerActivity.java

@@ -14,7 +14,6 @@ import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewCompat;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.ActionBar;
-import android.support.v7.widget.Toolbar;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.GestureDetector;
@@ -256,14 +255,14 @@ public class ArticleImagesPagerActivity extends CommonActivity implements Gestur
         m_prefs = PreferenceManager
                 .getDefaultSharedPreferences(getApplicationContext());
 
-        setTheme(R.style.DarkTheme);
+        //setTheme(R.style.DarkTheme);
 
         super.onCreate(savedInstanceState);
 
-        setContentView(R.layout.article_images_pager);
+        setContentView(R.layout.activity_images_pager);
 
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
-        setSupportActionBar(toolbar);
+        //Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        //setSupportActionBar(toolbar);
 
         m_progress = (ProgressBar) findViewById(R.id.article_images_progress);
 

org.fox.ttrss/src/main/res/layout/activity_images_pager.xml

@@ -1,9 +1,7 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:fitsSystemWindows="true"
     android:id="@+id/article_images"
     android:layout_width="fill_parent"
     android:animateLayoutChanges="true"
-    android:background="?headlinesBackground"
     android:layout_height="fill_parent">
 
     <org.fox.ttrss.ArticleImagesPager
@@ -37,6 +35,4 @@
         android:visibility="invisible" />
 
 
-    <include layout="@layout/toolbar" android:id="@+id/toolbar" />
-
 </RelativeLayout>

org.fox.ttrss/src/main/res/values/style.xml

@@ -123,4 +123,12 @@
         <item name="floatingActionButtonColor">?colorPrimaryDark</item>
     </style>
 
+    <style name="ImagePagerTheme" parent="Theme.AppCompat.DialogWhenLarge">
+        <item name="windowActionBarOverlay">true</item>
+
+        <item name="colorPrimary">#607D8B</item>
+        <item name="colorPrimaryDark">#455A64</item>
+        <item name="colorAccent">#D84315</item>
+    </style>
+
 </resources>