Downright: Read Markdown on Mac without opening an editor

I kept opening VS Code just to read Markdown. Finder’s Quick Look is fine for a glance, but a README, note, or spec still feels like raw text, and opening a full editor feels like too much. That small annoyance turned into Downright. It is a native Mac reader/editor with Document, Split, and Source views, themes, and Finder/Quick Look integration. The same ordinary file stays behind the reading and editing experience; it is not moved into a vault or notes database. The external-file-change review is useful too, especially when a script or coding agent edits a file while it is open, but it is not the main reason I made this. I mostly wanted Markdown to feel like a real Mac document. It is free, open source, and MIT licensed. If you use Markdown on a Mac, what do you open when Quick Look is too little and a full editor is too much?