Well, for this hair I actually fiddled around with the original blonde colour to make it as close as possible to Volatile, and used that as my base for all the other shades. From what I understand (and I haven't tried this myself), Pooklet's new version of her Photoshop actions can be used on colours other than Volatile, but you must start with something that is roughly the same saturation, lightness, etc. (so, a blonde or light brown shade, for example) - I'm afraid that it won't work if you start with a darker shade (like dark brown or black). Hope this helps!