label and document battle windows

include/battle_bg.h

@@ -1,13 +1,13 @@
 #ifndef GUARD_BATTLE_BG_H
 #define GUARD_BATTLE_BG_H
 
-void sub_8035658(void);
+void BattleInitBgsAndWindows(void);
 void sub_80356D0(void);
-void ApplyPlayerChosenFrameToBattleMenu(void);
+void LoadBattleMenuWindowGfx(void);
 void DrawMainBattleBackground(void);
 void LoadBattleTextboxAndBackground(void);
 void sub_8035D74(u8 taskId);
-void LoadBattleEntryBackground(void);
+void DrawBattleEntryBackground(void);
 bool8 LoadChosenBattleElement(u8 caseId);
 
 #endif // GUARD_BATTLE_BG_H