[NiLuJe]

Barring that solution (which I approve of wholeheartedly, it'll be much simpler, especially on a device with a recessed screen where you can just feel for the edge of the bezel even in total darkness. Just make sure you haven't actually disabled the gesture, as I think that's an option... somewhere in the settings?), we've discussed how to handle the brightness and warmth the hard way over the last two pages (keeping in mind that doing it this way will *not* be reflected in the UI).