This is mostly a usability update on the new vector tool options. The big thing is that the stacked widgets component is not very flexible, so it was creating issues with dead space and making scrollbars where they didn't need to be. In other areas. I have been using vertical layouts and showing/hiding items for these "tab" style widgets like the free transform.
I have been working in a petrovic/vector-ux branch, so you can see more bite size changes withat that.