The playtest was run in the ACD (Academy of Creative Destruction) forum.
I can't really change the upper right border of the map but, could maybe put a big title box up in the upper right corner. If I was artistic, it would be a nice opportunity, but I am not, so it isn't.
Pattern shading will come when I (or maybe someone else) codes for RP. That said, I sometimes use two-letter abbreviations for units denoting nationality and unit type rather than the colored symbols, which would certainly be an improvement for you.
As far as enlarging the island spaces, that's possible, if difficult, but the map is plenty big to begin with.