Architecture — Stage 4: Try a Branch

Current Structure

box-runner/
├── .git/
├── index.html
└── style.css

Same as Stage 3. No file added or removed.

Git History

Both branch labels — main and dark-theme — point at the same commit. HEAD is Git's way of saying "which branch are you on right now?" It points at dark-theme.

What Changed

No files, no commits. The only change is that a second branch label exists in .git/refs/heads/. If you opened .git/refs/heads/dark-theme in a text editor, you would see the same commit hash that is in .git/refs/heads/main.