I often change my phone to a “negative color” to see what things

Answer (1 of 2): Perhaps your phone “negative color” mode isn’t actually showing you the inverted colors. I just tested it on my mobile (Moto Z3 Play) and I noticed that while it actually inverts black & whites, it also doesn’t do the same with the colors - for example green text in white fields

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I often change my phone to a “negative color” to see what things look like and I'm wondering why almost everything is blue coloured? Shouldn't it be a whole range of colours

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