Master Password Storage

I am trying to figure out how the Master password is stored to be used by the software. I notice between Local storage and the File system I have to create two different records for a password I want to use in the same script. The funny thing is they use the same master password. Just trying to find out if maybe it is stored in Chrome local storage or if it is stored in a registry page somewhere on my machine much like iMacros has done.

Thanks in advanced!