Epidermis version 0.2 introduces a new utility called Epidermis Creator. Here's a screeshot:
The Epidermis Creator creator makes it very easy to turn a wallpaper file or a theme into a pigment, as well as editing its metadata.
The Epidermis Creator also supports skins of course, but you can also make those in Epidermis itself.
To launch the Creator, open Epidermis, click Settings, and click on the Launch button.
So put your artistic hat on, and start making some new pigments! This blueprint could use some love.