Merge "Fix the background color of the homepage." into sc-dev am: a7c0036a8c am: 3900eda7ae

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/13432402

Change-Id: Iae80976e44705fc10e1a6dc51d7ace2c4e0da7eb