Merge "Overview - add the ability to color scrim task views." into sc-dev am: 7ec7c22b07

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14066161

Change-Id: Ib099cef7e9f26b77e161c0b8cf1f58a6223bd6c2