I fixed with the help of gsw953 the basebrd.dll file for each of Mr GRiM's themes so that the white band no longer shows when you run Winver. The color of the Windows 10 logo also matches the theme to the best of my ability. I am sure Mr GRiM is working on some of his own, but you can use these in the meantime. Just take ownership of the original basebrd.dll file in Windows\branding\Basebrd\ and replace. The original files are all included along with the modded bitmaps.