Note — decisions on this screen: Embedded + fullscreen: fullscreen hides the global header + toolbar so the embedded viewer fills the window (still the in-app session, not external NG). Thin chrome: Fileglancer owns only the header, View toolbar, and add-data drawer; the layer bar, viewports and per-layer controls are Neuroglancer's own UI. Two links: the amber banner shows only on the edit link; read-link sessions never write to the DB. Exports: "Export ▾" = Copy Neuroglancer link · Download JSON state · Open in external Neuroglancer.