Merge "Make bouncer background opaque" into 24D1-dev am: 3e93da0c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26648163



Change-Id: I49562c53d87b755b395f754d324059a7d27d3471
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>