"The darksaber was an ancient lightsaber that was stolen by the Mandalorians during a collapse in power of the Galactic Republic. Unique among other lightsabers, the darksaber possessed a flat, black-colored blade that came to a sharp point much like a traditional vibrosword, rather than the rounded beam of more standard lightsabers. It had a uniquely black core surrounded by a white glow and gave off a higher pitched hum when active than more widespread lightsabers were known to make by the time of the Clone Wars."
If at all possible without killing your framerate, enable dynamic glow for this.
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