Merge "Enabling themed icon feature" into sc-dev am: 8a7f973264 am: 3725f08307 am: ce5cc870ba

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14738710

Change-Id: I988881210638065cf5054afb9901e51907f8b827