Auto-Scroll Image Downloader Chrome Extension

I need a Chrome extension that will automatically scroll through any webpage, wait for lazy-loaded content to appear, and then grab every image that matches user-defined criteria rather than everything on the page. The criteria will be configurable (for example minimum width/height, file-name pattern, or URL substring) so the user can fine-tune what gets saved. Once the scan is complete, the extension should download the selected images in a single click.

Key points you’ll be tackling:
• Auto-scrolling logic that stops only when the end of the page is reached or no new images are detected.
• A filter panel where the user can set those “specific criteria”.
• Support for all common web image formats—JPEG, PNG, GIF, WebP, SVG and anything else the browser can naturally render.
• Simple, flat download: files can land directly in the default Downloads folder; no further organisation is required.
• Manifest V3 compliance and clean, well-commented JavaScript so the code is easy for me to extend later.

Deliverables I expect:
1. The complete extension source code with a clear folder structure.
2. A ready-to-install package (.zip or .crx).
3. A concise read-me covering setup, permissions requested, and how to use the filter options.

If you’ve built similar scraping or bulk-download tools and know your way around Chrome’s extension APIs, let’s get this done quickly and cleanly.