>>57956137
>outlines get formed when reducing image size
I have no idea what you mean by this
>and by game itself. The only way could be editing code...
So the guy that didn't know enough programming to fix the sprite blinking decided to add the outlines to his sprites via code instead of just drawing them onto the PNGs?
Somehow I doubt that is the case. Especially since I can see the outlines myself in the sprites in the ROM file (pic related).

Are you just making shit up?