MahApps/MahApps.Metro — pull request #68 by sirWest (2012-04-03 07:03:17+00:00)
Title: Fixed le wild PasswordBox with cloning TextBox style.

This also gave the possibility to use the Watermark, but unfortunately not the clear button as it's tied to the TextBox control type in code and needs to be cloned for this purpose only.
@aeoth is it worth to clone the code to add the clear button also to the PasswordBox?