If that didn't help, it means the color is baked in... by the way, try this file from the attachment... with the corresponding correction of the signature file name from 3C43A120-C084-464E-804E-2375D7659514 to 3C43A120-2020-2409-1704-2375D7659514!
Too bad I don't know how to do it myself -_-
The effect is indeed red, but it's still useful; I was planning to create a second vampire hero, Galtran, in the style of a Vampire Prince with a red sword =)