What will happen if a button anchored to the bottom-right corner of the Canvas is resized?

When a button is anchored to the bottom-right corner of a Canvas in Unity, it maintains its positional relationship to that corner, even when the size of the button changes. The anchoring system in Unity ensures that if the button is resized, it will adjust its position to keep its distance constant from the designated anchor point—in this case, the bottom-right corner of the Canvas.

Thus, as the button is resized, its X and Y coordinates automatically adjust so that the spacing from the anchor point remains the same, providing a consistent user interface experience. This anchoring behavior allows for flexible UI design where elements can resize while staying proportionate to their designated anchor, ensuring they remain visually coherent relative to the Canvas edges.