http://en.wikipedia.org/wiki/Video_game_packaging
The boxes of Nintendo games (NES, Game Boy, Nintendo 64, GameCube, DS and Wii) from PAL territories all have a little coloured triangle on their spines, but in each territory it's a different colour (to show the region that copy of the game came from), Some common ones are: Green = UK, Pink = Spain, Red = France, Light Blue = Italy, Dark Blue = Germany, Brown = Australia. There are 49 different colours. As well as geographic region it is also to do with the language of the box art & booklets, though PAL region Nintendo games are made in Germany, the Triangles show the region that the game is shipped to. [1]
Was news to me too.







