Cursed wretched marketing
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It’s actually all just white light at different wavelengths, which tricks your brain into seeing different “colours”.
White light is the combination of all those wavelengths. It is only the combination that makes it "white" in exactly the same way that a smaller range of wavelengths are "red" or "blue".
Making your brain do exactly what it's supposed to do is a weird way is "tricking" it.