Well, it's quite nicely done, though I'm confused as to who it's for. It's in English, suggesting it's for foreigners; also, it explains who all the parties are

Well, it's quite nicely done, though I'm confused as to who it's for. It's in English, suggesting it's for foreigners; also, it explains who all the parties are. That's good for me, I know nothing about Greek politics. But anyone who needs an explanation of who the parties are might also need an explanation of how the voting system works. From the map it looks like all constituencies were won by blue or purple, with the vast majority going to the blue. But the "distribution of seats" looks like a bunch of different parties are getting seats. On the third hand, it can't possibly just be a proportional representation thing either, because (for instance) the blue party got just over 30% of the vote but appears to be getting almost half the seats. So am I right in guessing that the parliament is selected by some combination of first-past-the-post winners in constituencies and a bunch of other seats allocated by nationwide proportional representation?