Player Settings messed up

Somehow, after updating Facebook SDK, the Player Settings in the editor became messed up. The settings for all the different platforms merged together, and the different tabs merged together too. How should I go about restoring the original layout for Player Settings?

You either set the inspector to debug mode (click the gear icon at the top right of the inspector), or you have some weird editor script that is messing up the display of the player settings. Though it’s more likely you have set your inspector to debug mode.