Tweaking drop target transition to prevent flash.

Change-Id: I7a0204685f1d377117b4d8e39b1c0d32e7b37a76
diff --git a/res/values/config.xml b/res/values/config.xml
index f03ded7..fca0acc 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -47,7 +47,7 @@
 
 <!-- Workspace -->
     <!-- The transition duration for the background of the drop targets -->
-    <integer name="config_dropTargetBgTransitionDuration">200</integer>
+    <integer name="config_dropTargetBgTransitionDuration">100</integer>
 
     <integer name="config_crosshairsFadeInTime">600</integer>