Newsletter / email subscription banner — title, description, email input, and submit action on a full-width surface. For an inline signup CTA band; the prose-width form companion is subscribe-section. Background-image binding: when the source section shows the signup form over a photo (imageTreatment: full-bleed / overlay-scrim), set the Image field to the section's image URL and BackgroundScrim=dark (dims the photo and flips the copy white); BackgroundScrim=light washes pale imagery and flips the copy black; BlurBackground adds a frosted blur. BackgroundPosition (center/top/bottom) anchors the crop. Without an image, FormColorScheme (+ FormBackgroundIntensity) paints the banner surface.

• src/components/registry/components/heros-and-promos/subscription-banner.tsx→components/registry/components/heros-and-promos/subscription-banner.tsx
• src/components/registry/components/heros-and-promos/subscription-banner.recipe.ts→src/recipes/subscription-banner.recipe.ts