Yes, Open the Windowblinds skin in Skin studio, then open and save all the Parts/images of the skin (that you want to use) in Photoshop and save them to disk.

-Put them all in to the "MsStyles-Editor" of your choice and create your new MsStyle

-Other than this procedure -NO

Quoting c242,

reply 4

Perhaps You should state that it is a "NoGo" to publish those styles afterwards without permission.

 

-IF however, he creates a skin from scratch with the Editor then he can do whatever he wants with it.

-We all learned how to skin by first modifying and looking "under the hood" of existing skins etc.