Knitting a pseudo heel / Increase at the back center of the heel

Dear Community,
has anyone ever heard of a “pseudo heel” for striped socks where the increase is worked at the back in the center of the heel? It’s supposed to be very comfortable. This was a question posted on Facebook, and I don’t have any more information at the moment, but I’m trying to find out more. 

I haven’t heard of that before—I’m curious.

Hey there!
I think they mean the diamond heel.
It’s knitted with central increases and later the corresponding decreases.

Best regards 

I’ve never heard of that either.

Thanks for your comments, and thanks to Nina for the explanation.
I’ve shared the link with the user on Facebook. Maybe she’d like to add something else.