PlayerHead
Emits one square layered player head.
Pixel sources render immediately. Lookup sources are resolved asynchronously by the active runtime, publish only at a frame boundary, and ignore completions from superseded sources. loadingContent and failureContent each emit zero or one root and are displayed only for their matching state.
Receiver
active owner-thread screen scope.
Parameters
immutable pixels or a platform-neutral profile lookup.
positive logical square extent.
whether the outer hat layer is painted after the face.
active behavior applied to the head.
optional stable sibling identity.
optional zero-or-one-root loading presentation.
optional zero-or-one-root failure presentation.
Throws
when pixels, size, or state callback cardinality is invalid.
when no runtime screen evaluation is active.