Ah Infernal Pact is already blue, else that would have needed to be increased XD
The new subclass can starting from level 7 with it now also cast darkness and can still see in it. You can cast it 2 times for free, and then it costs 3 focus points (but you have 4 more per day), and when you get a short rest (or use the once per day restore feature) and have 3 or more focus points left you can restore a free cast.
You cant move the darkness around like the shadow monk subclass, and you don't get a teleport, but you get increased damage (cantrip) and utility from your spells.