Merge "Fix tutorial background color not up-to-date occasionally" into sc-dev...

Merge "Fix tutorial background color not up-to-date occasionally" into sc-dev am: 3ebd024a am: 47abd6c2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15373613

Change-Id: Icc92945e6231dd26d851ef695aa73a30e00dc0af