The passcode interface on the Lockscreen features a blur background that matches iOS 7’s style. If you’re much into customization, you might probably be interested in a new jailbreak tweak known as SleekCode which allows you to customize the passcode interface on the Lockscreen.
With SleekCode, you can enable or disable the blur background as well as the alpha style of the passcode. Doing so makes the passcode’s background transparent, clearly displaying your wallpaper.
Other than this, you can also hide the rings around the passcode keys as well as remove the Emergency and the Unlock Chevron buttons.
After installing the tweak, head to its preferences panel from the stock Settings app to configure it. From there, you can enable or disable each of the customization options mentioned above and make the passcode interface look like the way you want. Once you’re done with the settings, simple press the respring button at the bottom of the pane to restart your device and apply the changes.
Although the blur style is common in most parts of iOS 7, it’s always good to try a new look and feel. With SleekCode, you can get rid of the boring blur style and and customize it the way you want.
Best of all, the tweak is available for free on Cydia’s BigBoss repository and supports all iOS 7 devices.