Merge "Fix signal color in dark mode" into sc-dev am: ef1fdf1849

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13606818

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic56f86438b63e1da1b01ebf03ca39cc43d8e9f0f