I'm exploring the possibilities of creating UI's with new Improved Prefabs and so I've made 2 buttons, BasicButton and a variant RedButton. However when I change the size of BasicButton, the RectTransform of RedButton remains unaffected. Similarly changes to the size of RedButton don't show up as overrides, whereas the colour change does. I placed a cube, created a variant of it and changed the sizes there. These do propagate from the base to the variant and show up as overrides. Is this intended behaviour for RectTransforms or should I submit a bug report? If it is intended, this is super annoying and really puts a damper on my ability to use the new system for a UI framework.