LaTeX: keep the black/white defaults for rounded code-blocks frames

doc/conf.py

@@ -74,7 +74,11 @@
              {\footnotesize\raggedright\printindex}
              {\begin{sphinxtheindex}\end{sphinxtheindex}}
 ''',
-    'sphinxsetup': "verbatimradius=3pt",
+    'sphinxsetup': """%
+VerbatimColor={RGB}{242,242,242},%
+VerbatimBorderColor={RGB}{32,32,32},%
+verbatimradius=3pt%
+""",
 }
 latex_show_urls = 'footnote'
 latex_use_xindy = True

doc/latex.rst

@@ -583,11 +583,17 @@ start of the chapter::
 
      \begingroup
      \sphinxsetup{%
-           verbatimborder=2pt,
-           verbatimsep=5pt,
-           verbatimradius=5pt,
+           % These were used as defaults for the whole sphinx.pdf
+           % VerbatimColor={RGB}{242,242,242},%
+           % VerbatimBorderColor={RGB}{32,32,32},%
+           % verbatimradius=3pt,%
+           % New definitions for this chapter code-blocks only:
            VerbatimColor={named}{OldLace},
            VerbatimBorderColor={named}{Gold},
+           verbatimradius=5pt,
+           verbatimsep=5pt,
+           verbatimborder=2pt,
+           % Other configuration for this chapter only:
            TitleColor={named}{DarkGoldenrod},
            hintBorderColor={named}{LightCoral},
            attentionborder=3pt,
@@ -599,7 +605,8 @@ start of the chapter::
            cautionBorderColor={named}{Cyan},
            cautionBgColor={named}{LightCyan}}
 
-The below is included at the end of the chapter::
+And this is placed at the end of the chapter source to end the scope of
+the configuration::
 
   .. raw:: latex
 
@@ -856,16 +863,20 @@ Do not use quotes to enclose values, whether numerical or strings.
 
        .. caution::
 
-          This is an experimental addition during the 5.x cycle.  The feature
-          will remain, but the interface to it may evolve to include other
-          display elements such as admonitions.  But for the latter it is
-          already possible for LaTeX-aware Sphinx users to re-define their
-          LaTeX rendering and use functionalities of LaTeX packages such as
-          tcolorbox_ (cf. the ``sphinxheavybox`` and ``sphinxlightbox``
-          `Environments`_).  This is more complex for code-blocks.
+          The interface will remain experimental during the 5.x cycle: the
+          feature itself will remain, but the interface may evolve to include
+          other display elements such as admonitions.  For the latter it is
+          actually already possible for LaTeX-expert Sphinx users to use
+          functionalities of LaTeX packages such as tcolorbox_, via
+          redefinitions of the ``sphinxheavybox`` and ``sphinxlightbox``
+          `Environments`_.  This would be more difficult for code-blocks, and
+          this key achieves it.  The pict2e_ interface to some basic PDF
+          graphics operations is much more light-weight than the pgf_
+          framework used by tcolorbox_.
 
     .. _pict2e: https://ctan.org/pkg/pict2e
     .. _tcolorbox: https://ctan.org/pkg/tcolorbox
+    .. _pgf: https://ctan.org/pkg/pgf
 
 ``shadowsep``
     The separation between contents and frame for :dudir:`contents` and

sphinx/texinputs/sphinx.sty

@@ -150,15 +150,8 @@
 \sphinxDeclareColorOption{TitleColor}{{rgb}{0.126,0.263,0.361}}
 \sphinxDeclareColorOption{InnerLinkColor}{{rgb}{0.208,0.374,0.486}}
 \sphinxDeclareColorOption{OuterLinkColor}{{rgb}{0.216,0.439,0.388}}
-% TODO: clean-up this somewhat messy thing (cf verbatimradius)
-\definecolor{VerbatimColor}{rgb}{1,1,1}% white
-\define@key{sphinx}{VerbatimColor}%
-                   {\csname spx@VerbatimColorIsSet\endcsname
-                    \definecolor{VerbatimColor}#1}
-\definecolor{VerbatimBorderColor}{rgb}{0,0,0}% black
-\define@key{sphinx}{VerbatimBorderColor}%
-                   {\csname spx@VerbatimBorderColorIsSet\endcsname
-                    \definecolor{VerbatimBorderColor}#1}
+\sphinxDeclareColorOption{VerbatimColor}{{rgb}{1,1,1}}
+\sphinxDeclareColorOption{VerbatimBorderColor}{{rgb}{0,0,0}}
 % now the colours defined with "sphinx" prefix in their names
 \newcommand*{\sphinxDeclareSphinxColorOption}[2]{%
    % set the initial default
@@ -190,12 +183,6 @@
 
 \DeclareDefaultOption{\@unknownoptionerror}
 \ProcessKeyvalOptions*
-\AtBeginDocument{\ifdim\sphinxverbatimradius=\z@\else
-  \ifdefined\spx@VerbatimColorIsSet\else\definecolor{VerbatimColor}{RGB}{242,242,242}\fi
-% these colors are copied over from tcolorbox defaults ;-)
-  \ifdefined\spx@VerbatimBorderColorIsSet\else\definecolor{VerbatimBorderColor}{RGB}{32,32,32}\fi
- \fi
-}%
 % don't allow use of maxlistdepth via \sphinxsetup.
 \DisableKeyvalOption{sphinx}{maxlistdepth}
 \DisableKeyvalOption{sphinx}{numfigreset}