Default Installing themes from MCS

So i found some themes that are really nice on MyColorScreen and i want to install
let's say this one http://mycolorscreen.com/2014/03/07/4c/ which also included the zip
so how do I install that zip?
or do i have to set it up manually with widget by widget?

Thanks in advance
Phone: Samsung Galaxy S3 I747
Network: T-Mobile
Recovery: TWRP latest
Rom: some AOSP