One of the cool things about switching off the simple passcode in iOS 7.1 is a new keyboard design that shows up on the lock screen. This special keyboard only arrives when the user is prompted for a complex passcode, one that includes numbers and letters. Now those with jailbroken devices can install the lock screen keyboard across the entire iOS 7.1 system.
The keyboard itself features transparent keys entirely outlined in white, on a dark background. LockKeyboard is the name of the tweak, which will replace the default iOS 7.1 keyboard with the lock screen keyboard at all times. Once installed, there are no settings or options at all. The new keyboard just appears in any app that needs keyboard input.