Art : Properly fix sprite types

art/Makefile

@@ -2,8 +2,7 @@ SPRITES = $(wildcard *.png)
 
 all:
 	rm -f sprites.c
-	echo "#include <os.h>" > sprites.c
-	for FILE in $(SPRITES); do ConvertImg --format n2dlib $$FILE >> sprites.c; done
+	for FILE in $(SPRITES); do ConvertImg --format n2dlib $$FILE | sed "s/^static uint16_t/unsigned short/" >> sprites.c; done
 
 clean:
 	rm -f sprites.c sprites.h