The scars weren't a design from the start, they weren't even planned. But during summer of 2014, the roleplay I was once in took a turn during one of Labatis' "snapped" moments. I believe it was the heir that ended up fighting him. Although he didn't have multiple personalities, he had a short temper and took everything too personally, despite being told that none of what was being said was really aimed towards him. This resulted in a fight between the heir and Labatis. Labatis was able to give him a few good wounds, still enraged by one of his own personalities. However, the heir also landed some good wounds, but only one was deep enough to become a scar, which was a slash into his right eye. Since then, that eye has been sealed shut leaving him with vision for his left eye only.
This was a bit of a different version of Labatis, I decided to change the eye that was scarred, changing it to the left eye scarred instead of the right. His colors changed to look a little more accurate to what I imagined them to be. It could have been close to the same color, but since I switched art programs to do my line art and coloring, they could appear differently. (The solid gray color looked more realistic with what appeared to be a tint of brown)