Contribute
Everything here came from owners reading firmware images and comparing them. None of it is official, and all of it has gaps. You do not need to know git to help.
The easiest thing that helps
23 themes have no screenshot. Activating one and taking a picture of the home and settings screens is the single most useful contribution, because it is the one thing that cannot be worked out by reading a firmware image. See which ones are missing.
If you have a firmware update we don't
Post it in Discord or open an issue. Useful even without a changelog: the version string, the build date from Settings, your platform, and the md5 or sha256 of the file. Checksums matter more than they look — they are the only link between a file circulating on Discord and the file described here.
If something here is wrong
Every content page has an Edit it on GitHub link at the bottom that opens the source file in the browser editor. GitHub creates the branch and the pull request for you. Corrections are as welcome as additions — a setting described wrongly is worse than a setting not described at all.
If you would rather use git
Content lives in src/data/ as markdown with a small amount of frontmatter, one folder per vendor. The repository README documents the shape of each collection. Theme screenshots go next to the theme's index.md as home.png and settings.png, which is the layout every documented theme already uses.