Oxblood Bat Silhouette Hides Castle Dracula in Negative Space

2x2 grid, 16:9, pick 4 non-copyrighted, public domain works: class NegativeSpace_Duality:     def __init__(self, book="[$BOOK]"):         self. style   = "Bold two-tone flat design, figure-ground illusion, poster-clean, generous silhouette, zero gradients."         self.palette = "Two flats only: one ink, one paper (oxblood on bone, ink-black on fog)."         self.grid    = "2x2 grid: four different dual-silhouettes on one theme, each hiding a second image in its gap."      def hide_the_second_image(self):         # AI AUTO-INFERENCE: the outer silhouette         primary = infer_primary_silhouette(self. book)      # castle / bat / head         # AI AUTO-INFERENCE: the counter-image concealed in the empty space         hidden  = infer_thematic_opposite(self. book)         return f"The outer silhouette reads as {primary}; its negative space simultaneously forms {hidden}. Both equally legible; neither wins."  render_negative_space(NegativeSpace_Duality(book="Dracula")) # -> A spread-winged bat; the gap between its wings IS Castle Dracula's twin towers #    against a full moon. Companions: caped Count whose hollow becomes a coffin; a #    wolf's head that is also a woman's profile; fangs that are also mountain peaks. #    Oxblood on bone.