Proportioning Valve Question

[hsdropout]

I have searched for a diagram that might provide info but can not find. Am I correct in assuming that the threaded orafice right of the green fitting (see photo) goes to the front disc brakes, and the coupling at the back (left of the pink fitting goes to the rear drums? Or is it the opposite?
I am assuming the fitting under the rubber cap on front (right side) is a bleeder valve?
Any help to describe which is which would be much appreciated. Thanks.
It seems fairly important that I get the braking system installed properly.