Type Alias: GraphicsShape

type GraphicsShape = 
  | {
  fill?: GraphicsFill;
  height: number;
  stroke?: GraphicsStroke;
  type: "rect";
  width: number;
  x: number;
  y: number;
}
  | {
  fill?: GraphicsFill;
  height: number;
  radius: number;
  stroke?: GraphicsStroke;
  type: "roundedRect";
  width: number;
  x: number;
  y: number;
}
  | {
  fill?: GraphicsFill;
  radius: number;
  stroke?: GraphicsStroke;
  type: "circle";
  x: number;
  y: number;
}
  | {
  fill?: GraphicsFill;
  height: number;
  stroke?: GraphicsStroke;
  type: "ellipse";
  width: number;
  x: number;
  y: number;
}
  | {
  stroke: GraphicsStroke;
  type: "line";
  x1: number;
  x2: number;
  y1: number;
  y2: number;
}
  | {
  fill?: GraphicsFill;
  points: ReadonlyArray<number>;
  stroke?: GraphicsStroke;
  type: "polygon";
};

Declarative shape list — backends rebuild their native graphics from this on each change. Coords are entity-local. Extend with paths/arcs/bezier later by adding to the union.