Merge "Adapt all screen previews to recent changes (2/2)" into udc-dev am: e4d2f9aa38

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/22711161

Change-Id: I9e03b9b9580f9bf44a6fdb676176a6bfc4c30a9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>