I have no idea, I would guess it is a simple oversight.
I knew it was too easy :/
Map is taken from here https://en.wikipedia.org/wiki/Languages_of_Africa#Official_languages , so yes, you are both right (GinandTonic a bit more right, but the listing of languages itself is also correct, besides that grey=other)
Official languages?
I think it's a map of lingua francas
green is Arabic
pink is English
blue is French
light green is Portuguese
black is Swahili
orange is Afrikaans
grey is indigenous language
I knew it was too easy :/
Map is taken from here https://en.wikipedia.org/wiki/Languages_of_Africa#Official_languages , so yes, you are both right (GinandTonic a bit more right, but the listing of languages itself is also correct, besides that grey=other)