"Generate a pixel art sprite of Sans from Undertale accurately and precisely. Show Sans with a fully symmetrical skull face, both eye sockets pure white or black with no glowing or blinking effects. Ensure both eye sockets are identical and clearly visible—no one white and one black anomaly. Use a classic relaxed smile without eyebrows or facial markings. He wears the canonical blue puffy jacket with grey hood lining, a plain white shirt, black shorts with two vertical white stripes on each side, and pink slippers. The pose is casual, hands in pockets, standing with legs slightly apart. The pixel art style must be exact to the original Undertale sprite resolution and colors. Background should be transparent or neutral. If the AI detects mistakes or asymmetry, prompt it to fix and regenerate. No extra glowing, dynamic effects, or non-canonical features." See more