So it is meant to be the MAP BORDER?

Ok. Freeze the BACKGROUND layer so you don't grab the background poly, then unfreeze the GREEN BORDER layer and grab the line to change it's width to zero and place it on the MAP BORDER layer. Then freeze the map border layer and unfreeze the BACKGROUND layer, so you can get to your background.

Here is a really good blog by Remy Monsen that explains everything you need to know about the colour palette.

The palette I attached to your drawing is my default 'Save Custom PAL', which I just reload every time I need it. It's slightly less jarring than the actual default palette, and has fewer pinky purples and more of everything else.

If it's readable (which it definitely is) and you like it, that's good enough.

I like the dark ocean, but that is only my take on it.

Not at all, Calibre. In turn, I was only explaining the time limitiations.

Ah yes. That works quite nicely, and you can chose not to add the striping to the rivers and lakes by not copying them across to the new sheet.

Here is the modified example map so you can see how to do it.

In it I have used the edge striping from Erdan Worlds. Some of you may not have that style, but you can locate an alternative in the C:\ProgramData\Profantasy\CC3Plus\Filters\Images folder.