In case anyone's interested in going the UI Tweak route, I figured it out. The stock color grey that MagicButton uses is RGB: 160, 160, 160. That's not
exactly it, but it's within 10 or so each way.. close enough that I gotta give myself a damn aneurism looking for the difference.
Additionally, I found that SPB PocketPlus Extended themes auto-skin or auto-blend MB into the taskbar.
Edit: See new pics in siggy below.. Magic Button is hidden nicely in plain sight.
Happy for phyre.