{"template":{"name":"product-launch","description":"Product launch announcement with bold typography, feature highlights, and status badge.","aspect_ratio":"40:21","placeholders":[{"key":"accent_color","description":"Accent/highlight color (hex/rgb/hsl)."},{"key":"author","description":"Author name shown in metadata."},{"key":"bg_color","description":"Background color (hex/rgb/hsl)."},{"key":"brand","description":"Brand or product name."},{"key":"brand_initial","description":"Custom placeholder value injected into the template."},{"key":"date","description":"Date text shown in metadata/footer."},{"key":"description","description":"Custom placeholder value injected into the template."},{"key":"feature1","description":"Custom placeholder value injected into the template."},{"key":"feature2","description":"Custom placeholder value injected into the template."},{"key":"feature3","description":"Custom placeholder value injected into the template."},{"key":"height","description":"Output image height in pixels."},{"key":"label","description":"Custom placeholder value injected into the template."},{"key":"status","description":"Custom placeholder value injected into the template."},{"key":"text_color","description":"Primary text color (hex/rgb/hsl)."},{"key":"title","description":"Main title text shown prominently."},{"key":"version","description":"Custom placeholder value injected into the template."},{"key":"width","description":"Output image width in pixels."}]}}