Merge "Adding dither to workspace scrim" into tm-qpr-dev am: e8319618

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21678679



Change-Id: Id07bd03d9db90a08a8fa1882cbc3f25772f3bdd5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>