[Suggestion] Hand / Facial Gestures using Camera

Excellent app Hannah! (my project for this weekend!)

I've noticed a few enhancement requests for emails/notifications etc and wondered if it might be possible to use the front facing camera as a way of recognising hand or facial gestures? Move hand left for emails, scroll through (hand up / down etc), email list etc, smile to open, frown to exit!! You're already halfway there addig the functionality to read different facial expressions/moods.

Start by locating the Android camera and existing facial-expression functionality mentioned in the issue. Define which hand and facial gestures should be supported and which email or navigation actions they trigger. Done means the supported gestures work reliably with the intended camera input and do not disrupt existing controls.

Written by the indexing model from the issue text.