Inky-Phat_Gimp Palette File

I was following the instructions on the web page getting started with Inky-Phat. I performed the git-clone for the gpl file. In Gimp (v 2.8.14) when I select ‘Use custom palette’ I don’t see where to select or add the file 'inky-phat.gpl.

Is there a step I’m missing?

Ignore this. I just figured this out.