Well, to answer your question, yes there are some tricks to get this to work. However, there’s no real why to get it to work right since doing so requires the loss of animations for the main menu and there is also an issue of getting the temporary icons (New firmware and Now Playing) to work.
Until there is a change in the firmware which allows this to be implemented correctly, then I’m not going to attempt to try and make any changes that require full background changes.