iOS Code Injection
The title was a bit misleading, but still relevant somehow.

A jailbroken device allows unsigned code to inject into the allowing users to do cool shit.

like so...
How is the jailbreak scene atm? Is cydia and all still used?
It used to be quite easy to install themes and effects like the one you're showing  Shy
Cydia just recently made a comeback. However, it isn't an official release. It's a forked version of it. The team plans on updating another fork (called Limitless) to newly compiled jailbreak as well so that might be exciting.

Check out

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