Fix warning about gMonPaletteTable section

src/field_effect.c

@@ -1,6 +1,5 @@
 #include "global.h"
 #include "gflib.h"
-#include "data.h"
 #include "decompress.h"
 #include "event_data.h"
 #include "event_object_movement.h"
@@ -29,6 +28,10 @@
 #include "constants/metatile_behaviors.h"
 #include "constants/songs.h"
 
+extern struct CompressedSpritePalette gMonPaletteTable[]; // Intentionally declared (incorrectly) without const in order to match
+extern const struct CompressedSpritePalette gTrainerFrontPicPaletteTable[];
+extern const struct CompressedSpriteSheet gTrainerFrontPicTable[];
+
 #define subsprite_table(ptr) {.subsprites = ptr, .subspriteCount = (sizeof ptr) / (sizeof(struct Subsprite))}
 #define FIELD_EFFECT_COUNT 32