Merge "Update Switch color to improve accessibility" into sc-dev am: 4e395b98 am: 9f9e32e3 am: 8ed35ef7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15127246

Change-Id: I3ed55461b732344c62f1efa088a0b19823ba7ac9