mrcoles/full-page-screen-capture-chrome-extension — reverse-engineered prompt

Build me a simple Chrome extension that lets me capture a full screenshot of the current web page with one click. I want it to grab the entire page from top to bottom, not just the visible part, and turn it into a single image I can save or open when it finishes. Keep it lightweight and reliable, especially on long pages where other screenshot tools usually miss sections or cut things off.

A small popup with one clear button is enough, or clicking the extension icon can start the capture if that feels cleaner. Please handle the scrolling and stitching behind the scenes so the user does not have to do anything manually. It should feel fast and straightforward, with basic feedback while it is working.

Set it up so I can load it as an unpacked extension in Chrome for development. If you need details on current extension behavior, look up the latest Chrome extension docs online.