Passing "page style" variable to PayPal
I use the same PayPal account to process payments from multiple websites.
I typically use Woocommerce with Wordpress. Woocommerce will pass a "page style" variable to PayPal. This tells PayPal which logo and colors to display during the checkout process. This allows paypal to match the branding of more than one referring website.
I need to pass this variable. I've searched through the Classipress php files and can't find the form that passes the payment variables to paypal. I want to add a hidden field to this form.
Can somebody point me to the correct file and maybe point out how these variables are passes since I haven't found a form that does this?