Fully customize a Theme

[killhr]

Customizing a theme
Sorry if this has been posted already
Ok you have another noob here 1st timer at all of this forum rooting etc...lol but since ive rooted my Evo and have been experimenting with different roms and now themes i was wonder how to create or just customize a theme from another theme so i have Evo running sense using ava froyoV8 rom with the manup456 and what i wanted to do is change the outlines of some of the work from green to red i hope someone here can and will help thanks

p.s i know how to do the picture changing but can we get a lil deeper and i have looked around but havent found a step 1. thru ?? process