Once you buy a MyColors theme and run it (through My Colors Theme manager) you can choose to apply the WB and/or icons and or wallpaper, etc.  You don't need any of the apps in ODNT to run it.

If you do have any ODNT apps, you can adjust the elements you installed from there.

So if you bought the U of M theme, and you had WB, you could hue shift the color.
The only limitation I am aware f is that you cannot edit MyColor themes in SKS.

So you can use one at a time or mix and match.