Return OWNER's ordered group identities. Group identities remain owned by the application; symbols are sufficient when they are the vocabulary.

Return OWNER's ordered controls in GROUP.

Return OWNER's ordered metabar actions.

Return :SCALAR or :SWITCH for CONTROL in OWNER.

Return CONTROL's short label in OWNER.

Return CONTROL's cheap authored value. This runs during owner refresh, never inside repaint.

Format the already observed VALUE for CONTROL.

Return scalar VALUE's clamped position from 0 to 1.

Return :CONTINUOUS or :COMMIT-ON-RELEASE. The latter previews a pointer drag but applies only its last value after release, which keeps expensive derived work out of motion-event bursts.

At OWNER's frame boundary, move CONTROL by signed DIRECTION and MULTIPLIER.

The maximum of compatible quantities.

The minimum of compatible quantities.

Addition over compatible quantities.

Multiplication and scalar scaling.

At OWNER's frame boundary, set scalar CONTROL from clamped FRACTION.

At OWNER's frame boundary, toggle switch CONTROL.

Logical negation of one test or raw truth value.

Return ACTION's short button label in OWNER.

One named verb over a session.

Invoke ACTION at OWNER's frame boundary.

Return GROUP's short label in OWNER's metabar.

An explicitly owned AVFrame.

Test whether two compatible scalars are equal.

Test whether one compatible scalar is less than another.

The componentwise absolute value of a raw value.

Subtraction or unary negation.

Draw the uniform-radius roundrect primitive when MEDIUM supports it.

Describe which BASIC-MEDIUM fallbacks fed MEDIUM's GPU polygon leaf. Each entry reports semantic calls, polygon points produced by McCLIM, and GPU triangles emitted by luv. Direct polygon calls are named :DIRECT-POLYGON.

A direct GPU target for an ordered LUV-GPU-MEDIUM drawing stream. An embedded mirror retains an immutable prepared CPU revision for the game's final pass; a standalone mirror renders into its native canvas drawable.