classical_hero
In whom I trust
We seriously need a hint.
Length of country name
Length of country name
If purple is zero it can't be that. Saudi Arabia is the Kingdom of Saudi Arabia, Spain is the Kingdom of Spain. Mongolia and Canada are just called that, though.
Maybe it's number of words in a country's official name other than "kingdom" "of" and "[name]"? Or number of unique words in the title of a country's official name?
PNG is the Independent State of Papua New Guinea, which is six words, so doesn't fit that criterion. Its Tok Pisin name is Independen Stet bilong Papua Niugini, 5 words, so that doesn't work either.
Answer:Belgium/Belgique/België has an e
And so has Luxembourg. Or do the names themselves not count?
Grey = 1