I think it has become less easy to compare the new output, now that the output font color turns gray as soon as something is modified in the input cell. Is there any solution?

  • $\begingroup$ An annoying feature, I agree. $\endgroup$
    – rhermans
    Sep 8, 2014 at 11:28
  • 1
    $\begingroup$ I agree with you, I think of it more like a bug than a feature. I'd also like to find a solution to this problem. $\endgroup$
    – user20161
    Oct 1, 2014 at 20:32

1 Answer 1


There is a style associated with this behavior, that you can disable by evaluating

CurrentValue[$FrontEnd, {PrivateCellOptions, "EvaluationUnmatchedStyle"}] = {}

To re-enable the behavior, set the value to Inherited:

CurrentValue[$FrontEnd, {PrivateCellOptions, "EvaluationUnmatchedStyle"}] = Inherited
  • $\begingroup$ How would you use this option so that it is set forever and survives restarts? $\endgroup$
    – MarcoB
    May 30, 2015 at 21:46
  • 1
    $\begingroup$ In more recent M10 versions, there should be an entry in the Options inspector, which you could set in your global preferences(just search for EvaluationUnmatchedStyle). $\endgroup$ Jun 1, 2015 at 12:47

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