Separating publication icon & favicon

Currently in Ghost, the publication icon (set in Settings → Design → Brand) doubles as the site favicon. While convenient, it creates a real constraint: the same image must work well as a brand mark within the site and as a tiny favicon in browser tabs — which often require very different design choices.

For example, a dark-background icon may look great on-site but renders poorly against a light browser UI. A light-colored icon might disappear against a white browser tab. Dark mode introduces further complexity, where a single image can’t reliably serve both contexts.

The request: Add a separate optional “Favicon” upload field alongside the existing “Publication icon” in Settings → Design → Brand. If left empty, Ghost continues using the publication icon as the favicon (fully backward-compatible). If a favicon is uploaded, it is used only for the browser tab/bookmark icon, while the publication icon continues to appear within the site.

This is a small but meaningful quality-of-life improvement for publishers who care about polished branding across both on-site and browser contexts.