Merge "Remove color extraction from popup arrow, add shadows." into sc-dev am: d95aa5a5d7 am: e530554941

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14471367

Change-Id: I0b2e97b32980092a5663ed4edaf0a5b49f960cf9