ref: 2e90df15b76050c825f6c0b96c88453feec8f3dd
parent: cf26f559857de7317900578c21c2e8727964d36c
author: Rangi <remy.oukaour+rangi42@gmail.com>
date: Tue Oct 6 14:09:33 EDT 2020
Update battle anim bg function comments, and identify more unnamed labels