Merge "Color Picker Section (1/3)" into tm-qpr-dev am: 13a16340b4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/20806327

Change-Id: I5c1394e5994dfe9233b9b5fb590bd678082a4831
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>