The Shadow Freddy theory

I always thought that the shadow animatronics are the souls of previous employees who died in the Springlock suits (which deaths I wrote in my fanfic too), but after reading this theory:Five Nights at Freddy's Lore Theory by Evanest, it made me think about more. 
I still can't believe that there is a Shadow Freddy suit, but it's not impossible, not at all. And if Purple Guy used it? It can be. We don't know which suit he used.
 Also taht both shadow animatronics are purple, it can be a connection to him. I thought that they can still be the ghosts of employees since I think the fazbear uniform is purple, so every adult wore purple there, that's  why their ghosts are purple.

Shadow Freddy can be also evil or good. When he says 'Follow me', I always thought he tries to lead the kids to the murderer to kill him, but they fail, one by one. But he can also be purple guy himself, leading the animatronics away to the secret room, then run out and destroy them. That's new for me but very logical. 
 But I found a better role for Shadow Freddy in my AU, which makes more sense than hm being a random employee. You will se
(such a luck I'm writing so slow, there is always place to change future things)

As for Shadow Bonnie... Evanest says he can be the soul of Purple guy. I like this idea a lot. Shame I didn't run into it earlier. Because now, both in my comics and fanfiction, I clearly built up pg's personality and it would be ruined if I would use this element. So I have to skip it, no matter how much I like it

 So far, here is the fanfiction I wrote  The Missing Children Incident - Prologue 2/1