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I would like to have a notebook stylesheet which colors any number e.g., {1,2,{3}} red. I tried Preferences ,Appearance, LocalVariables etc.but there numbers stay black. How can I change my stylesheet? I also could not find it in previous answers to changing color.

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  • $\begingroup$ try $PrePrint? E.g., $PrePrint = Map[If[NumericQ@#, Style[#, Red], #] &, #, {-1}] &; $\endgroup$
    – kglr
    Jul 14, 2021 at 17:43

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