Originally Posted by
neo158 That's exactly what wardo5757 is saying, remove the background and the tiles return to their default colour.
You don't seem to understand. They no longer have the default colour they once had. Due to the new excitement over a transparent start screen, their new default colour is your system colour.
For example, say your system colour is yellow. Until yesterday's update, the Xbox Video tile used to be green (as is the current Music tile). Since the update, however, it is either yellow OR transparent, and no longer green.