Generate a complete four-image Logo proposal for the perfume brand 「余迹 AFTERTRACE」: 1. Brand worldview and concept cover. 2. Logo symbol and generation logic. 3. Color, typography, and visual language. 4. Perfume, packaging, and scent-testing space applications. Extend the Logo's outline, afterimage, negative space, and refraction into glass, bottle caps, fragrance cards, packaging, and retail space.