I love it, my only feedback was the I didn't really understand which I was supposed to pick when it showed me N. Korea. Because all I saw the Korean Peninsula, and the north was dark green and the south was light green.
It seems to be showing the recognised territories in dark green and contested areas in light green (e.g. for Russia, Crimea is also in light green, although interestingly not Eastern Ukraine, and IIRC the West of Guyana was shown in light green for Venezula).
These things are always slightly arbitrary, e.g. why include Taiwan but not, say, Somaliland (both are unrecognised by most other states but de facto independent).
That is correct about the green colors work. Most of the maps are from wikipedia and that's how they do show contested areas in light green. I think I will change them though to another source because it is confusing.
Yep, when North Korea is selected, both North Korea and South Korea are highlighted and it's not clear which country is requested. Same goes for South Korea.
These things are always slightly arbitrary, e.g. why include Taiwan but not, say, Somaliland (both are unrecognised by most other states but de facto independent).