FORGE_ICON
The web UI's icon (a #: a codebase of hashes). Pages link it, and tcm serve answers /favicon.ico with it.
export const FORGE_ICON = `data:image/svg+xml,${encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32"><rect width="32" height="32" rx="7" fill="#1f6feb"/><path d="M13.5 7 11 25M21 7l-2.5 18M7.5 12.5h18M6.5 19.5h18" stroke="#fff" stroke-width="3" stroke-linecap="round"/></svg>')}`