Topic: Wii U box spine triangles colours

I know this has probably been asked before,I've noticed all my Wii u and 3ds game have a green triangle on the spine I assumed it was just a cosmetic thing,however I recently got Wii party u and the triangle is a dark pink/purple which I found strange,when I asked a friend we had a look at his games and his bayonetta 2 has the same dark pink triangle,so is it just to show games bundled with other things in this case bayonetta1/Wii remote or is there a deeper meaning?I can't find info anyware

They are primarily used in Europe and they are for certain areas. Green is for UK, and that dark purple is probably Europe as a whole. That one's usually used in bundle-releases, and the box and manual are also in the mentioned languages (or were before).
Naturally, France, Germany, Spain, Scandinavia etc all have different colours in the spine. I think they have been around since NES days.

Thanks for the knowledge, I knew there had to be a reason

Blue is for Italy, yellow for Spain, pink is for France or UK I'm not sure but I have some of both countries but Wii games, I don't have a disc from Germany yet. ;p

I don't think they are country dependend, all of my games are bought in the Netherlands but different genres/games have different colours.

Dark Pink: Sing Party, Bayonetta 1+'2, Darksiders 2
Green: TTT2, Batman Arkham city, AC3, CoD: Ghosts
Light purple/greyish: batman Arkham Orogins
Orange: AC Black Flag, ZombiU, Rayman Legends, ME 3
Blue: Zelda WWHD, Sonic Lost World, Pikmin 3, MK8, DKC TF, HW

Those triangles for me mean one thing... it's European and will work on European systems.

@Akazury
Did you check the language in the box art? I bought my Wii U NSMBU+LU bundle here in Italy but the box art is Spanish so it's yellow.

@BensonUii
Okay you're right I misunderstood what you meant.

Blue: Dutch
Dark Pink: Multi-Language, Darksiders 2 is Dutch however
Green: English
Purple/Greyish: Eng/French
Orange: Dutch/French

These triangles are on the DS games as well.

As I said, triangles have been around since early NES days, but they were on the manual back then.