So after tinkering with the settings for a while, I've stopped on this PCA format, which I will use for all of my current and new samples moving forward.
Here's how it works:
Up = Increase in: Baltic, North Atlantic
Right = Increase in: South Asian, Siberian, East Asian, Amerindian
Down-Right = Increase in: West Asian, Red Sea
Left + Down-Left = Increase in: East Med, West Med
Dot Colours:
Red = Unmixed Romanians/Moldovans from Romania's Moldavia
Blue = Unmixed Romanians/Moldovans from R. Moldova
Green = Unmixed Ethnic Minorities from either country
Black = People of mixed heritage from either country
Gold = Ivano-Frankivsk (Highlander) Ukrainians
Border Colours:
Red = Unmixed Romanians/Moldovans from Romania's Moldavia
Blue = Unmixed Romanians/Moldovans from R. Moldova
Green = All people from R. Moldova
Black = All people from Romania's Moldavia
Gold = Ivano-Frankivs Ukrainians and a mixed Ukrainian/Romanian from Chernivtsi
Label codes correspond to abbreviations for district/county: