fixed the background color

res/layout/drawer.xml

@@ -35,6 +35,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="bottom"
+            android:background="@color/white"
             android:clickable="false"
             android:orientation="vertical"
             android:paddingBottom="@dimen/standard_half_padding"