Why are walkers crisps blue for cheese and onion, green for salt and vinegar?!

Question: i still like them, but dont they have it round the wrong way?

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Answers: i still like them, but dont they have it round the wrong way?

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I'm sure there used to be another brand that did that colourscheme and Walkers did theirs the other way around. They changed it sometime in the late 80's or early 90's if i remember rightly. And needless to say the other crisp brand is rarely, if at all, seen thsese days ...

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