This mod consist of a Menu background, Loadout background, and Payday/Ponyday logo in Equestrian.

I do not own the art. I google imaged and found this among a lot of others.

Side note: I've tried to upscale the text resolution, but the logo apparently was too big that it either it is gone completely or only 1 or 2 letters were visible. Only the Menu resolution could be upscaled