复古徽章提示词，适合怀旧字标、盾徽轮廓、复古配色和纪念章式构图。
提示词模板
retro twin-lens camera, banner KEEP SHOOTING, kraft brown + black
pine forest with bear silhouette, retro national park badge, banner EXPLORE
vintage motorcycle silhouette, banner RIDE FREE, distressed retro palette
classic typewriter with paper sheet reading WRITE, ink black + ivory
