Complex coherence Phase vs. Interferogram

Hello,

I have a doubt about the computation of the interferogram in PolSarPro. It looks exactly the same than the phase of the complex coherence. Shouldn’t they look different between each other?

I created both with the Pol-InSAR functionalities of PolSarPro

Thank you,
Santiago

This is the HH interferogram:
interferogam

And this is the Complex coherence phase for the HH Pair:
coh_phase