NoN

The alter ego and chaotic form of the Youtuber Nerd Fiction, who has recently developed his lore. An entity known as of now as some form of AI with a possessive bond on Nerd, and who has the ability to emplace his consciousness into the mortal form of Nerd through the means of a special watch while Nerd is able to rest in a quieter realm. NoN enjoys controlled chaos and creates their tenets of it upon the way they live their life and help Nerd. However, humanity is...harder to experience than they originally bargain for. They are seen dressed in the color purple in their solo form, glitching with that as their defining feature, along with a hooded suit and tie, and a mask with an electronic readout for a mouth.

"Did you check out the new Nerd Fiction video?"
"Yeah, it's got that glimpse of NoN in it!"
"Ooh exciting!"
"In chaos trust!"

chromatic aberration

A major glitchy effect in editing videos that can suggest the presence of something otherworldly or affecting the broadcast. Often used as an editing choice in order to add spookiness or perhaps hidden details to the underlying story of a medium such as a show, movie, or ARG.

The red chromatic aberration in this one shot, given the context, suggests some type of arcane influence the character is under.

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Markiplier's 3 Scary Games series uses a lot of chromatic aberration to showcase the spooky side of certain characters and their intentions.