Is this for use of a design component?
Usually, the design is in the form of the following <designPath>/jcr:content/<templates>/<design components>/<any design context properties>
In some patterns of implementation, there is also a clientlibs folder in the design path.
Usually, these are all versioned in the CVS (eg git or svn). If you keep a filter to include this path, it will be persisted in your local filesystem.
Hope this helps.
