PiazzA Theme is for the new CM Theme Engine introduced in CM12.
You will need to have a custom Rom that supports the CM12 TE installed on your phone or tablet.
The main focus of PiazzA is to get square. ;)
A lot of icons have been Piazza'd. Over 1400+ and more to come.
This theme will grow in icon support.
But to do that, I'll need your help.
Please goto the PiazzA Theme Community on Google+ if you have an icon not Piazza'd.
Thank you for your support and I hope you enjoy PiazzA.