Request: Background image preview and cropping in theme creator
## Source
Reported via user feedback group.
## User Request
> A way to preview what a background image would look like when fully deployed would be a great addition. Also, if possible, a way to crop or make minor adjustments to background images within the app.
## Description
When customizing themes, users currently have no way to see how a background image will look before saving/applying it. This makes the process trial-and-error. Two features are requested:
### 1. Live preview of background images
- Show a real-time preview of the background image applied to the actual app layout before committing
- Let users see how the image interacts with text, cards, and other UI elements at different scroll positions
### 2. In-app image cropping / adjustments
- Basic crop tool to frame the background image correctly
- Minor adjustments such as repositioning, scaling, or aspect ratio fitting
- Avoids requiring users to use external tools before uploading
## Notes
Both features are on-pattern for theme customization and align with existing theme creation functionality.
issue