it's likely fine. Freshly watered? that's my guess based on color of substrate beneath.
initialy leaves - cotyledoens and the first single-serrated blades are not always perfect-looking. if the darkness worsens, it's hot soil or something you are adding with water. Not much you can do with hot soil.. don't overwater that'll likely cause more damage than good. If it is the soil, it should grow through it within a few days to a week as it builds up a better root system and canopy to make use of it.