Fix Subscription Picker's Toolbar colors

app/src/main/res/layout/dialog_feed_group_create.xml

@@ -108,7 +108,8 @@
                 android:id="@+id/subscriptions_header_toolbar"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
-                android:gravity="center_vertical">
+                android:gravity="center_vertical"
+                android:theme="@style/ContrastToolbarTheme">
 
                 <LinearLayout
                     android:id="@+id/subscriptions_header_info_container"

app/src/main/res/layout/picker_subscription_item.xml

@@ -52,7 +52,7 @@
             android:layout_gravity="top|center_horizontal"
             android:layout_marginTop="4dp"
             android:scaleType="centerInside"
-            android:tint="@color/white"
+            app:tint="@color/white"
             app:srcCompat="@drawable/ic_done"
             tools:ignore="ContentDescription" />
     </FrameLayout>

app/src/main/res/layout/toolbar_search_layout.xml

@@ -18,12 +18,11 @@
         android:focusable="true"
         android:focusableInTouchMode="true"
         android:hint="@string/search"
-        android:textColor="@color/white"
+        android:textColor="?attr/toolbarSearchColor"
         android:imeOptions="actionSearch|flagNoFullscreen"
         android:inputType="textFilter|textNoSuggestions"
         android:maxLines="1"
         android:nextFocusDown="@+id/suggestions_list"
-        android:theme="@style/WhiteAccentTheme"
         tools:ignore="RtlHardcoded" />
 
     <FrameLayout
@@ -47,7 +46,7 @@
             android:layout_gravity="center"
             android:contentDescription="@string/search"
             android:scaleType="fitCenter"
-            app:tint="@color/white"
+            app:tint="?attr/toolbarSearchColor"
             app:srcCompat="@drawable/ic_close"
             tools:ignore="RtlHardcoded" />
     </FrameLayout>