Using Themekey module with Zero Point

Florian,

I want to try using the themekey module to use different color schemes of 0 point in different sections of my site. It looks like I would have to copy the theme folder and rename to create a separate subtheme like salamander skins and then either reconfigure each of the copies to use the appropriate color scheme or do a merge of the desired color .css file (e.g. ivy.css) into style.css. How do you suggest I do this?