Fix crash of resource not found am: 64d53e549c am: 5e22083c4a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/24083114

Change-Id: Ic5db883bdb5ddd0768049c2867668d340595d6f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>