White line down plastron. Help

[BornInTheBoot]

I'm not very skilled with water turtles so I'm just wondering if this white coloration down the middle of his plastron is normal. I'd appreciate any help. Thank you

 

[cdmay]

New growth. Pigment will catch up. Nothing unusual.

 

[BornInTheBoot]

New growth. Pigment will catch up. Nothing unusual.

Great. Thank you very much