Zip Entry Image Ref
Marker source for an image stored inside an open ZipFile (e.g. a .kmz texture), decoded on demand by the platform ImageDecoder so the archive is never extracted to disk. Wrapped via ImageSource.fromUnrecognized. Equality keys on the archive identity + entry name so the render resource cache shares and evicts these like any other texture; the zip must stay open for the lifetime of the consuming scene.