Merge "Add an extra colored layer when animating launches (1/2)" into sc-dev...

Merge "Add an extra colored layer when animating launches (1/2)" into sc-dev am: d17c68d5 am: aab741ec

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14679830

Change-Id: I22bf3b1269ce47c4c02d7339f81b45bfb44628ed