[Sailor Steve]

Albrecht von Hesse is doing the exact same thing for SH3, and he now has eight different files for different smoke classes.

Be aware that light warships produce less smoke than heavy warships, and most merchants do not make thick, black smoke. The boilers for the steam engines are all similar, with bigger ones making more smoke. Diesel engines make a different kind of smoke, and the thick black smoke is likely only going to be seen on older coal-fired ships.