What add on is this please

[Mugetsu]

Can someone please tell me what add on this is I can't figure it out and idk what those sums are I assume there some kind of resource in the game, I installed some adding cause they seemed useful but idk what add on this is and since I don't know what it is I can't go into the settings and move it around I don't want to get rid of it because I apparently installed it for a reason.