(adsbygoogle = window.adsbygoogle || []).push({}); Ok theres this site that generates a theme that you put in, The things you will need are-
Pc/mac
winrar (depends)
OpenSSH/Codethemed cydia app(99cents) / cyber duck for mac users
ok to get started go to this site You must login or register to view this content.
design the theme you want, do not sign in i did it and made me restart so just make your theme and then go up to the top and click download, if you choose to use openSSH then download if you choose codethemed then click their app then and connect.
Codethemed app is really self explanatory
OpenSSH- first extract your file to your desktop. next go up on google and learn how to do open ssh because im not explaining it,
next close all the folders and open Winscp (for mac users open CyderDuck) and open stash and then themes
after open your themes folder in Winscp (Mac - CyberDuck) drag and drop you theme that you just made and drop it in Winscp (Mac - CyberDuck) and tap on copy
after copying is done close winscp and open winterboard on your iPhone or iPod Touch and find theme on the top. Once you find it tap on it and hit the home button after that your done.

It will work on ipod, ipad , and iphone i believe as long as you have everything that you need, the cydia app and a computer.