From 16a62a86ce859ae41ec4d7685e5bf97a96d99c10 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-Fran=C3=A7ois=20B?=
 <2589111+jfbu@users.noreply.github.com>
Date: Mon, 13 Mar 2023 10:51:20 +0100
Subject: [PATCH] LaTeX: guard against non-available xcolor in setting
 \sphinxbox defaults

---
 sphinx/texinputs/sphinx.sty | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sphinx/texinputs/sphinx.sty b/sphinx/texinputs/sphinx.sty
index 9463701f9..e7a02bbd6 100644
--- a/sphinx/texinputs/sphinx.sty
+++ b/sphinx/texinputs/sphinx.sty
@@ -812,12 +812,14 @@ will be set to white}%
 \do{\expandafter\let\csname KV@sphinxbox@\x\expandafter\endcsname
                     \csname KV@sphinx@box_\x\endcsname}
 \newcommand\sphinxboxsetup{\setkeys{sphinxbox}}
-% some of these defaults got already set directly
+% Some of these defaults got already set directly.
+% As xcolor is perhaps not loaded we can not use =VerbatimColor syntax,
+% and must use the \definecolor syntax.
 \sphinxboxsetup{border-width=\fboxrule,
                 padding=\fboxsep,
                 border-radius=\fboxsep,
-                border-TeXcolor=VerbatimBorderColor,
-                background-TeXcolor=VerbatimColor,%
+                border-TeXcolor={RGB}{32,32,32},%  default VerbatimBorderColor
+                background-TeXcolor={gray}{0.95},% default VerbatimColor
                }%
 \RequirePackage{sphinxpackageboxes}
 \input{sphinxlatexadmonitions.sty}