I have been wanting to change the theme on my G1, I recently rooted it and installed the Cyogen mod, but I have been looking for a better theme. I have tried FreshFace and Ahome, and I can't stand how it's really just a fancy layover, it's slow and just feels clunky. Are there any custom builds that are efficient with custom themes? Or are there ways to install custom themes without using an application that just lays over the original?