A lock screen app has geometric mosaic effect, exactly the same as A5.

Also you can set camera or call shortcut to access camera or call easily, setup your personal text.

NOTICE:
This is a theme of X Locker, you need to install X Locker first and apply this theme.

PS:
1. Click settings icon on right of tool bar to enter theme settings.
2. Launch X Locker, you can change wallpaper, setup security lock, and more.