Determines whether this layer uses auto-layout to position its children. Defaults to "NONE".
layoutMode: "NONE" | "HORIZONTAL" | "VERTICAL"
Changing this property will cause the position of the children of this layer to change as a side-effect. It also causes the size of this layer to change, since at least one dimension of auto-layout frames is automatically calculated.
As a consequence, note that if a frame has
layoutMode === "NONE", calling
layoutMode = "VERTICAL"; layoutMode = "NONE" does not leave the document unchanged. Removing auto-layout from a frame does not restore the children to their original positions.