From 0238c087315326efd30d418bf5f22f4b315d0500 Mon Sep 17 00:00:00 2001
From: Rolf Niepraschk <Rolf.Niepraschk@ptb.de>
Date: Thu, 8 Sep 2022 13:09:57 +0200
Subject: [PATCH] ...

---
 ptbposter/ptbposter-new-engines.clo | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/ptbposter/ptbposter-new-engines.clo b/ptbposter/ptbposter-new-engines.clo
index e31eb15..41df30d 100644
--- a/ptbposter/ptbposter-new-engines.clo
+++ b/ptbposter/ptbposter-new-engines.clo
@@ -37,10 +37,13 @@
     bold-style=TeX,
   ]
 \else
-  %%%\RequirePackage[usefilenames,weight=Regular]{firamath-otf}
-  %%%\setoperatorfont\mathsf 
-  %%%\unimathsetup{partial=upright}%
-  \RequirePackage{newtxsf}
+  \iftrue
+    \usepackage[usefilenames,weight=Regular]{firamath-otf}
+    \setoperatorfont\mathsf 
+    \unimathsetup{partial=upright}%  
+  \else
+    \usepackage{newtxsf}
+  \fi
 \fi
 
 \renewcommand*\familydefault{\sfdefault}%
-- 
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