Since the last but one update Sparky has been appearing on the home screen every time it opens. This has not been the first time you've had problems with the pesky sprite.

Accepted she is useful as the tutorial guide for new players, despite the annoying voice, but once play is well beyond the tutorial stage she is completely superfluous for all intents and purposes. Therefore, could you allow all players a functioning button to disable/enable the little pest as and when they see fit?