From 9f8a89804e5797e0c6490c1bc3be239cfaf24c80 Mon Sep 17 00:00:00 2001
From: Sergey Linev <S.Linev@gsi.de>
Date: Tue, 8 Oct 2024 10:19:59 +0200
Subject: [PATCH] Ensure font size at least 1px

---
 modules/base/latex.mjs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/modules/base/latex.mjs b/modules/base/latex.mjs
index 29ece1276..f22a23615 100644
--- a/modules/base/latex.mjs
+++ b/modules/base/latex.mjs
@@ -578,8 +578,7 @@ function parseLatex(node, arg, label, curr) {
             elem.attr('fill', curr.color || arg.color || null);
 
             // set font size directly to element to avoid complex control
-            if (curr.fsize)
-               elem.attr('font-size', Math.round(curr.fsize));
+            elem.attr('font-size', Math.max(1, Math.round(curr.fsize)));
 
             if (curr.font?.isSymbol) {
                elem.text(replaceSymbols(s, curr.font.isSymbol));