The parent GuiObject is unaffected and neither shrinks nor grows.

Sets an effective 1:0 grow‑shrink ratio on the parent GuiObject. Objects set to Grow never shrink below their basis size, so overflow may occur if the container becomes smaller than the flex line's combined basis size.

Sets an effective 0:1 grow‑shrink ratio on the parent GuiObject. Objects set to Shrink never grow above their basis size, so underflow may occur if the container becomes larger than the flex line's combined basis size.

Sets an effective 1:1 grow‑shrink ratio on the parent GuiObject. This setting ensures the flex line always fills the container, even if the container size changes.

Enables the GrowRatio and ShrinkRatio properties for the UIFlexItem, allowing for relative growth or shrinking of the parent GuiObject in a ratio compared to other flex objects also under control of a UIFlexItem.