Add Images to a Generation
Upload any image and include elements from it in your thumbnail — a product, a scene, a graphic — without it overriding the face or style.
What are User Images?
User Images are uploaded files — product shots, backgrounds, props, graphics, screenshots — that you want to incorporate as visual elements in a generation. Unlike Inspirations (which contribute style signal), User Images contribute content: "include this object or scene in the composition."
Adding an image
- Navigate to Images in the sidebar.
- Upload an image file. FatThumb stores it in your library.
- Give it a name for easy identification later.
Using an image in a generation
In the Advanced lane (Studio), open the Images panel and select one or more images from your library. The selected images are attached to the generation as content references.
The generation engine includes the image's content in the composition prompt — for example, a product photo will prompt the AI to incorporate that product into the thumbnail scene. This is separate from the Style References mechanism: images are framed as "include this element" rather than "match this mood."
Combining images with other panels
User Images work alongside Persons and Style References in the same generation:
- Person locks the face identity (always FOREGROUND-first).
- Style References set the visual mood (mood-board framing).
- Images add specific content elements.
The three signals are composed in order with explicit framing so each one contributes its intended dimension without overriding the others.
Practical uses
- Product videos: upload the product and include it as a prop or background element.
- Reaction thumbnails: upload the video screenshot or game scene you're reacting to.
- Brand elements: upload a logo or brand asset to include as an overlay hint.
- Backgrounds: upload a scene or environment to anchor the thumbnail setting.
Tips
- Keep images focused on the element you want included. A busy, cluttered source image produces ambiguous signal.
- If you want the image to purely influence mood (colors, lighting, composition), use it as an Inspiration instead of a User Image — see the Inspirations guide.