Tweaking styles for AllApps and widgets spaces. (Bug 10843502)

- Fixing various issues with Search bar showing when it shouldn't be.

Change-Id: I2a553ad93e3422666a883b90a1ff97625bf05831
diff --git a/res/layout/apps_customize_pane.xml b/res/layout/apps_customize_pane.xml
index b01add9..e488601 100644
--- a/res/layout/apps_customize_pane.xml
+++ b/res/layout/apps_customize_pane.xml
@@ -16,7 +16,7 @@
 <com.android.launcher3.AppsCustomizeTabHost
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"
-    android:background="#FF000000">
+    android:background="#80FFFFFF">
     <LinearLayout
         android:id="@+id/apps_customize_content"
         android:orientation="vertical"