Merge "Use separate color for popup when on top of another surface (folder/all apps)." into sc-dev am: 19c1b86bc3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14314778

Change-Id: I876fc20e1d76371eb7ea0ee8631d6049b124aa3c