BaseListEditor: "add" icon added.

app/src/main/java/com/xabber/android/ui/helper/BaseListEditor.java

@@ -118,6 +118,7 @@ public abstract class BaseListEditor<T> extends ManagedListActivity implements
 	public boolean onCreateOptionsMenu(Menu menu) {
 		super.onCreateOptionsMenu(menu);
 		menu.add(0, OPTION_MENU_ADD_ID, 0, getString(getAddTextResourceId()))
+                .setIcon(R.drawable.ic_add_white_24dp)
 				.setIntent(getAddIntent())
                 .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
 		return true;

app/src/main/res/menu/add.xml

+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/action_add"
+        android:title="Add"
+        android:orderInCategory="105"
+        android:showAsAction="always"
+        android:icon="@drawable/ic_add_white_24dp"/>
+
+</menu>
\ No newline at end of file

app/src/main/res/xml/preference_theme.xml

 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
-
-        <ListPreference
-            android:title="@string/interface_theme"
-            android:key="@string/interface_theme_key"
-            android:entries="@array/interface_theme_entries"
-            android:entryValues="@array/interface_theme_entryvalues"
-            android:defaultValue="@string/interface_theme_default"
-            />
         <ListPreference
             android:title="@string/interface_smiles"
             android:key="@string/interface_smiles_key"