Merge "Monochromatic Theme on ThemePicker" into tm-qpr-dev am: f2ca29fa00 am: 242c7dd3e5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/20345835

Change-Id: I3539b0c40eb50b9ceefc9c8c0aff1650ea826774
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>