[Aeris]

I've updated it again... now it's ready for Osmo, I think! (screen updated too)

You could make something like this maybe:
- Double finger tap: Keyboard appears
- Double finger when keyboard is out: keyboard goes up (or back down) on the screen
- Click on the esc button: keyboard disappears

Or, alternatively:
- Double finger tap: Keyboard appears / disappear
- I can change the esc button icon with a top/bottom position switcher

In the future, if it works well, we could also improve chars and make them bigger