I made some changes to the text on the experience bar earlier that should fix that problem as well but i'll double check that before I release the next patch.
The leftover pieceson the persona window are fixed for the next release.
The frame positioning is also fixed on the persona window but quite possibly may be on other windows so keep an eye out
Merchant window fixed for next release
The scroll bar on the loot window i'll have to look at. Its an easy fix, but it doesn't really GAIN anything the way the window is currently laid out.