diff -up source-highlight-3.1.8/src/esc.style.no-black source-highlight-3.1.8/src/esc.style

--- source-highlight-3.1.8/src/esc.style.no-black	2019-03-20 16:52:33.053965325 +0000

+++ source-highlight-3.1.8/src/esc.style	2019-03-20 16:52:42.502965289 +0000

@@ -7,7 +7,7 @@ comment cyan i ;

 number purple ;

 preproc darkblue b ;

 symbol darkred ;

-function black b;

+function b;

 cbracket red;

 variable darkgreen ;