Reading specific value from JSON file

Hi,

I'm looking for a tip/help with getting data from JSON file.

What I'm trying to do is:

1) Find central.json file in %AppData%\\Roaming

2) Check file for value:
libraries \ path

3) Make found path a %Variable%

4) Use this variable to search additional files and rename them.

While executing all the actions wouldn't be a problem (like with XML which is easily supported) I can't get it done right with JSON.

I attached the specific file as well.

Thanks for help,
Mateusz