{"template":{"name":"editorial","description":"Magazine-style template with serif headline and elegant framing accents.","aspect_ratio":"40:21","placeholders":[{"key":"accent_color","description":"Accent/highlight color (hex/rgb/hsl)."},{"key":"author","description":"Author name shown in metadata."},{"key":"author_role","description":"Author role or job title."},{"key":"bg_color","description":"Background color (hex/rgb/hsl)."},{"key":"brand","description":"Brand or product name."},{"key":"date","description":"Date text shown in metadata/footer."},{"key":"eyebrow","description":"Small label displayed above the title."},{"key":"height","description":"Output image height in pixels."},{"key":"subtitle","description":"Supporting subtitle or body text."},{"key":"tag","description":"Short label, category, or version text."},{"key":"text_color","description":"Primary text color (hex/rgb/hsl)."},{"key":"title","description":"Main title text shown prominently."},{"key":"width","description":"Output image width in pixels."}]}}