Merge "Adding color back to popup container." into sc-dev am: d88f572864 am: 8b14b2da8a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14796372

Change-Id: Ief9fa2a56db25bfcb0870b3db7004c0fc114a33c