Merge "Fix crash from previewing launcher with unknown wallpaper colors." into...

Merge "Fix crash from previewing launcher with unknown wallpaper colors." into sc-dev am: 200d7634 am: 36af576d am: 89a1182b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15462873

Change-Id: Ifb6c6f2c3fdc6b5271e078d7e4e8f7f625c3c24d