We also found some inconsistencies in the MaelStrom engine.
1. This is incorrect work of shaders for the sea. I gave an example of ERAS mod, old storm and COAS 1.3.0 on MaelStrom. Here you can see that shaders are not working correctly.
2. This is a first person sight at sea. By default, it should be yellow, and it should be white when aiming at neutral ships.
Sorry if we don't know something. We just draw your attention to the discrepancies we found.
Best regards, LEOPARD!