Merge "Fix color tiles not changing  with light & dark theme" into udc-dev am: b309a6d7cc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23489024

Change-Id: Ib2e3e6b4cb7405e2c4a629a98c6b0dbee33ede8d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>