I have difficulty with blues, and the water rails are really difficult to see. Anything you can do about that (make them lighter maybe ?
Otherwise, great mod !!

FWIW, I'm not color blind, and I find them very difficult to see as well. Especially as they are very thin, and very close in color to deep water.

In some maps I have seen channels are marked with a relatively thick white band, frequently black bordered, and sometimes with a blue dashed line in the middle. Sometimes the background is a super-pale blue, not white, but that would be something like "azure" or "aliceblue" from https://htmlcolorcodes.com/color-names/

While not strictly accurate as a "shipping route", I think it would be a fine choice to represent the sea lanes in this mod. It also is a quite stylized way to represent them which, honestly, I think is accurate enough since they are not really a visible artifact in the "real world".

For example, these:
https://d2wb2wm9dm62ai.cloudfront.net/contentmanager/content/STANDARD_A_800x560_NC-30-years.jpg
https://d2wb2wm9dm62ai.cloudfront.net/contentmanager/content/STANDARD_A_800x560-track.jpg

hi!
i am working on a mod option to switch between the older/more visible and the current/less intrusive version of waterways, probably pushing an update later today or tomorrow...

Thanks.. Great mod though. I've got a water heavy map which I'm playing just now, which I wouldn't be able to without this mod.
Good work !

<3

has been released!