Own skin

Hi guys,

I want to create my own fully independent skin based on my
own idea. I tried to find out how to create my own skin but
I didn´t find a good tutorial or explanation. I think the
easiest way to create an own skin is editing
"plain-dev" skin but where can I find the sources
and where i have to put them so they won´t be overwritten on
next build?

-- Jan
-- 
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