[Sisom]

Hi, I've been trying to style customer notification e-mails using CSS, but have run into some problems.
Where does X-Cart pull the internal style sheet from?

I thought it must be
{config_load file="$skin_config"}
which is in
/mail/html/order_customer.tplas my e-mails have an internal style sheet, but I don't remember how it got there.
How do I edit $skin_config if it is the source of the internal style sheet?