Nevermind the temperature of the room, as soon as refrigerant is exposed to atmosphere, it becomes a gas because its boiling point at atmospheric pressure is so low. Any liquid leaked from the refrigeration circuit is just compressor oil, which actually is a good indicator of a leak in the system. But it shouldn’t be black like in the photo so idek what’s in the photo, let alone if there was a refrigerant leak.

Also if your frudge lost its charge, just get a new one. It’ll be cheaper than the repair bill