Mostly with the following logic:
Purple = Turkish majority/plurality (and the Straits)
Blue = Misak-ı-Milli borders (not exactly, I know)
Green = non-Arab muslim majority/plurality, plus close to Anatolia Aegean Isles and some extra land in Thrace
Yellow = In Europe mostly to connect green, in Caucasia everything but core Armenia and core Georgia. In Arab lands Holy Cities, Iraqi oil and Suez Canal
Red = not much to gain or core area of of a Christian state (other than Bulgaria). Egypt and Libya could be considered but too much hassle. in Lebanon Christians might be casus belli for Europeans
Dark Red = Wallachia sacrifices the Danube border, Sudan is too much (though Red Sea coast could be made lighter red), Tunisia too far with two European great powers interested in it.