Element Label
@Serializable
Per-element text overrides for the element identified by kind + name (10.8/C3, batch 4). An element has two independent text annotations: the name label (text retitles it; dx/dy offset it from the glyph in screen px; visible hides it) and the live value/state (e.g. a queue's count) with its own valueDx/valueDy/valueVisible. Either can be moved, retitled (the name), or hidden independently.