Merge "Update colors for Digital Wellbeing Toast." into sc-dev am: 3558f084f3 am: e8eccdb81c am: d351e23eea

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14737897

Change-Id: Ibf5b067930c178ae6f71a76eafab95fbf59a1225