Janitors Diary

First day on the new place, I cant really complain, people are quite kind here and whats most important they pay just enough.
The second janitor - Art who works on the night shift is a really nice fellow.

The place is very odd, even a simple guy like me can spot it easily. I mean something like those paintings on the second floors staircase.
Ive spoted some switches under each picture. Ive even pressed one of them, but nothing actually happened. Strange.

We had some searious problems with electricity lately, I think thunder hit one of the generators on the roof. Ive talked with electricians, and
they have told me that whole instalation is ruined. There are some disruptive discharges near armorys door, so its not the best idea to touch them 
with power is turned on, they even forbit us to go to the roof, it may be dangerous.

I think i know what is the purpose of those strange buttons, Ive tried to push few of them several times, and I spoted some changes on the
picture in the menagers office. Pushing them basicaly makes some part of it apear, some of them dissapears at the same time though. 
I think the main goal of the puzzle is to reveal all the picture... but what happens then? Its so strange who would install 
such mechanism in prison..?

There was something Ive missed yesterday, when you look close enough you can see markings on each picture, I think they show which parts of 
the puzzle are triggered after pushing a button. 

Ive asked Art about those pictures today, and he told me that this is part of mechanism that was installed here before they turned the place
into prison. Theres a service passage behind the managers office. He said that once he had been trapped by some kind of security system 
there, and they get him out through that tunnel.