Warning, file /plasma/plasma-integration/src/platformtheme/fonts_kate.pl was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 #! /usr/bin/perl
 
 use strict;
 
 while (<>)
 {
     chomp;
     s/Font=Oxygen\ Mono/Font=Hack/;
     print "$_\n";
 }