I know this isn't your UI but I ran into the same problem; the health and exp bars are not placed correctly and the text for moves are white. So, again, I'm hoping you can help me :)
Kind of an old thread but I'm new to this (editing Pokemon games) and I don't know where to go to get to Battle_Scene, Battle_Scene_Objects, etc. so I'm hoping you can help me figure out where to go. Thanks :)