Entangling Roots...changing color of the roots?

I want to make a modified version of Entangling Roots thats basicly 'grasping tentacles', so I need to make them grey/purple, but I don't know how to edit an effect like that. Any suggestions? I also dont wanna replace the original art...

Skin it by urself then make another model for it. Then import it you got both models.

Se here . this is a gray Entangling roots.
read the readme there and modify the skin!!

??? im deafly confused... i dont remember adding a readme...

and dont use the war3 viewer for viewing spells... they dont show...

sry Shadow_Strike
think i was drunk or some thing when i posted this-
think i was trying to tell him some thing :(

that's cause most of the involve particle emitters, use the viewer to find entanling roots, and then find the textures used by doing Current File ->Textures Used