The Duhma, a scarce sentient species, existed as a collection of distinct tribes. These tribes distinguished themselves from one another via ritualistic tattoos. Residing on the shadowed hemisphere of their planet, the Duhma had, through generations, forfeited their ability to see. Consequently, when venturing beyond their world, they donned opaque visors to shield their exceptionally delicate eyes.
Following his designation as an Enemy of the Empire, Abal Karda employed a visor and Duhma tribal markings as a means of camouflaging his true identity.