carbon-app/carbon — reverse-engineered prompt

Build me a polished web app where people can paste or type source code and turn it into beautiful images to share online. The main screen should feel simple, with a code editor preview in the center and controls to change the syntax theme, font, background color, window style, padding, shadows, and other visual details.

Let users import code by dragging in a file, typing directly, or opening a GitHub gist from the URL. They should be able to export the finished image as PNG or SVG, copy the image to their clipboard, open it in the browser, or share it quickly with a link. Add a Tweet option that handles image alt text properly.

If users create an account, let them save snippets automatically so they can come back and edit them later. Shared snippet links should show a nice preview on Twitter and Slack, and there should be an easy way to embed snippets on a blog or website. Make it installable for offline use too.