Given that any such previously made mods are no longer available, I have decided to make a colorblind map boundary mod. Those who are not colorblind will notice that the original red color lines still show up (to greater or lesser degrees). This mod “paints” over them; it was not wise to erase the red lines.
How to install:
For this mod to be complete, you must download both parts, due to size. Just combine the two extracted folders, and place in res_mods. Please post if you find any problems.