Asset updates

- Change how default widget previews look (5509429)
- Improve antialiasing in portal assets

Change-Id: I9993aec46a9a9ab8a732b4fc150120c935523f02
diff --git a/res/layout/apps_customize_widget.xml b/res/layout/apps_customize_widget.xml
index 7cc4177..2c11c1d 100644
--- a/res/layout/apps_customize_widget.xml
+++ b/res/layout/apps_customize_widget.xml
@@ -32,8 +32,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginBottom="4dp"
-        android:orientation="horizontal"
-        android:background="@drawable/widget_info_bg">
+        android:orientation="horizontal">
         <!-- The name of the widget. -->
         <TextView xmlns:android="http://schemas.android.com/apk/res/android"
             android:id="@+id/widget_name"