Invert web page colours in Opera (2 Solutions!!)

I need some help, the black and white colours are inverted, Why does this happend? It only happends when I'm on opera GX : r/OperaGX

How to fix random inverted colours in opera gx : r/OperaGX

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Why are some image's colors inverted? : r/OperaGX

Color inverted some places

Some colors inverted? : r/OperaGX

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