ref: 3241c9cfaa3c234f15c5c8d468c71556f9f00e2c
parent: 8c435054a0c5c8d3a0ad49f42790c492583caef5
author: Rangi <remy.oukaour+rangi42@gmail.com>
date: Sun Sep 9 14:15:54 EDT 2018
Use 0/1/2/3 for palettes, and rgbds opt feature for battle transition graphic