Violet is a human, because she doesn't have such a good AI as Maid-chan has!
If you like the light effects and good graphics in anime, you may like the one Maid-chan did her last review (and first, since Maid-chan is a new Steemian) on: Sakurasou
That one also plays a lot with lights sometimes.
I think she's human, too.
What I found odd was that it was delivered in a box to the commander.
I asked the question why there are so many doubts according to this.