Update Overview scrim to N1 @ L35 for Dark Theme.

This avoids clashes with app backgrounds.

Bug: 197321290
Test: Flashed and tested in Dark Theme
Change-Id: Ie94b80ef5bf30f05834d2779f5fc9205dc03c2f4
diff --git a/res/color-v31/overview_scrim_dark.xml b/res/color-v31/overview_scrim_dark.xml
index 85ede9a..2ab8ecd 100644
--- a/res/color-v31/overview_scrim_dark.xml
+++ b/res/color-v31/overview_scrim_dark.xml
@@ -14,5 +14,5 @@
      limitations under the License.
 -->
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
-  <item android:color="@android:color/system_neutral2_500" android:lStar="35" />
+  <item android:color="@android:color/system_neutral1_500" android:lStar="35" />
 </selector>