This property remains mutable even though the rest of the object is immutable because it is used by the renderer and maintains rendering state across worldstate instances (like whether the organism is selected or not).

public Object RenderInfo { get; set; }

Public Property RenderInfo As Object
	Get
	Set

public:
property Object^ RenderInfo {
	Object^ get ();
	void set (Object^ value);
}

member RenderInfo : Object with get, set