Yeah, the colored borders are merged with a few other layers in the main map, so it's a bit tricky. I tried doing as you suggested there, adding a paper layer under the COA, but the problem there is that it messes up the ocean colors as well. I suppose I could always clip away everything else besides the border colors. There's also the issue of what do do with the 'crossings' colors; any messing around there is going to make them too hard to distinguish from one another.