Change text labels from RGBA to ALPHA8.  Reduces memory usage and may increase performance.
diff --git a/src/com/android/launcher2/Utilities.java b/src/com/android/launcher2/Utilities.java
index 507096c..94e281b 100644
--- a/src/com/android/launcher2/Utilities.java
+++ b/src/com/android/launcher2/Utilities.java
@@ -415,7 +415,7 @@
 
         /** You own the bitmap after this and you must call recycle on it. */
         Bitmap createTextBitmap(String text) {
-            Bitmap b = Bitmap.createBitmap(mBitmapWidth, mBitmapHeight, Bitmap.Config.ARGB_8888);
+            Bitmap b = Bitmap.createBitmap(mBitmapWidth, mBitmapHeight, Bitmap.Config.ALPHA_8);
             Canvas c = new Canvas(b);
 
             StaticLayout layout = new StaticLayout(text, mTextPaint, (int)mTextWidth,