Update fast scroll shadow to match other shadows

Change-Id: Ia19f64b8c3b5a09a11909f2792e3c0956a0dc1cd
diff --git a/src/com/android/launcher3/BaseRecyclerViewFastScrollPopup.java b/src/com/android/launcher3/BaseRecyclerViewFastScrollPopup.java
index 37584fe..b4567c5 100644
--- a/src/com/android/launcher3/BaseRecyclerViewFastScrollPopup.java
+++ b/src/com/android/launcher3/BaseRecyclerViewFastScrollPopup.java
@@ -32,9 +32,9 @@
 
     private static final float FAST_SCROLL_OVERLAY_Y_OFFSET_FACTOR = 1.5f;
 
-    private static final int SHADOW_INSET = 5;
-    private static final int SHADOW_SHIFT_Y = 4;
-    private static final float SHADOW_ALPHA_MULTIPLIER = 0.5f;
+    private static final int SHADOW_INSET = 3;
+    private static final int SHADOW_SHIFT_Y = 2;
+    private static final float SHADOW_ALPHA_MULTIPLIER = 0.67f;
 
     private Resources mRes;
     private BaseRecyclerView mRv;