You unlock your iPhone by either having it read your fingerprint or typing in a simple passcode. On Android, you unlock your device by drawing a pattern between a grid of dots.
But imagine being able to unlock your iPhone with art. Imagine painting a smiley face, or scrawling your signature, or heck, drawing a pornographic picture on your iPhone display and having it magically spring to life.
That’s just what a new jailbreak tweak lets you do.