Diamond Method
http://www.ags.center
Logon Theme v 1.1 03.03.17

Install:

1)Click "Kickoff Menu" -> "Application" -> "Settings" -> "System Settings"
2)Double-Click on "Login Screen"
3)Click "Theme" -> "Install new theme" -> "Open File Dialog"
4)Choose the Diamond_Logon.tar.gz file on your computer and Click "OK" -> "OK"
5)Choose the Diamond_Logon and then Click "Apply" Enter the Password and Click "OK".

License: GPL

Debian jessie + KDE4 - tested OK
Ubuntu trusty tahr + KDE4 - tested OK

Recommend with https://store.kde.org/p/1165858/ + https://store.kde.org/p/1165872/