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$strings{skip} = $strings{this} eq $strings{last}; $strings{last} = $strings{this}; and thus not color it differently? > Well then quote it. OK, $strings{"last"} = $strings{this}; But now it looks even more different. Therefore perl mode should know that $x{last}, $x{'last'} etc. should look the same, and different from just last. emacs-version "27.1"