%
% sphinx.sty
%
% Adapted from the old python.sty, mostly written by Fred Drake,
% by Georg Brandl.
% This has now grown to become a full-fledged LaTeX support, split
% among multiple files, some of which provide features unavailable
% from usual LaTeX packages in interaction with the mark-up produced
% by the Sphinx LaTeX writer.

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{sphinx}[2024/10/11 v8.1.1 Sphinx LaTeX package (sphinx-doc)]

% provides \ltx@ifundefined
% (many packages load ltxcmds: graphicx does for pdftex and lualatex but
% not xelatex, and anyhow kvoptions does, but it may be needed in future to
% use \sphinxdeprecationwarning earlier, and it needs \ltx@ifundefined)
\RequirePackage{ltxcmds}

%% for deprecation warnings
\newcommand\sphinxdeprecationwarning[4]{% #1 the deprecated macro or name,
% #2 = when deprecated, #3 = when removed, #4 = additional info
  {% limit scope of \spx@tempa, \AtEndDocument works even if nested.
  \edef\spx@tempa{\detokenize{#1}}%
  \ltx@ifundefined{sphinx_depr_\spx@tempa}{%
     \global\expandafter\let\csname sphinx_depr_\spx@tempa\endcsname\spx@tempa
     \expandafter\AtEndDocument\expandafter{\expandafter\let\expandafter
         \sphinxdeprecatedmacro\csname sphinx_depr_\spx@tempa\endcsname
         \PackageWarningNoLine{sphinx}{^^J**** SPHINX DEPRECATION WARNING:^^J
         \sphinxdeprecatedmacro^^J
         \@spaces- is deprecated at Sphinx #2^^J
         \@spaces- and removed at Sphinx #3.^^J
         #4^^J****}}%
  }{% warning already emitted (at end of latex log), don't repeat
   }%
  }% end of scope limiting group for \spx@tempa
}
%% important build warnings use an undefined reference to induce latexmk
%% into complaining (once per warning) at very end of console output
\newcommand\sphinxbuildwarning[2][]{%
  \ifcsname sphinx_emitted_#2\endcsname
  \else
    \global\expandafter\let\csname sphinx_emitted_#2\endcsname\@empty
    \AtEndDocument{\hbox{% should the printing of text be made conditional on
                         % some boolean? (7.4.0 answers this by adding an
                         % optional argument and testing it here for emptiness
                         % but no usage is made of this novelty yet.)
        \if\relax\detokenize{#1}\relax
        % No [], print a red warning text at very end of document
                         \bfseries\color{red}%
                         \@nameuse{sphinx_buildwarning_#2}%
        \fi
                         % place an undefined reference deliberately
                         \let\nfss@text\@gobble % no ??
                         \ref{!!\@nameuse{sphinx_buildwarning_#2}}%
                         }%
    }%
  \fi
}
\@namedef{sphinx_buildwarning_badtitlesec}{%
   Your system has titlesec version 2.10.1 which causes disappearance
   of section numbers; check the latex log warning for details}
\@namedef{sphinx_buildwarning_booktabs}{%
   Some tables with booktabs class (check latex log) but booktabs
   package not loaded; add its loading to the latex preamble}%
\@namedef{sphinx_buildwarning_badfootnotes}{%
   Footnote rendering may have had problems, due to extra package or
   document class; check latex log for instructions}%
\@namedef{sphinx_buildwarning_badiconpackage}{%
   You have set iconpackage=\spx@opt@iconpackage, but this LaTeX package
   is not found}%

%% OPTION HANDLING
%
% We generally first handle options then load packages, but we need
% \definecolor and \colorlet from xcolor to handle the options.

% Support for colour options
% --------------------------
% At 7.4.0, package xcolor is required (which has allowed to get rid of
% annoying fall-back branches).  Internals here got refactored to some extent.
%
% MEMO: xcolor \fcolorbox coloured boxes render better in some PDF viewers
% than with color package \fcolorbox.  Since 1.6.3, Sphinx uses only its own
% custom variant of \fcolorbox when handling code-blocks.  But \fcolorbox
% appears also in Pygmentize output mark-up.
% Should Sphinx load xcolor with its dvipsnames and svgnames options?
\RequirePackage{xcolor}

% the \colorlet of xcolor is overkill for our internal usage here
\newcommand{\sphinxcolorlet}[2]
    {\expandafter\let\csname\@backslashchar color@#1\expandafter\endcsname
                     \csname\@backslashchar color@#2\endcsname }

% (5.3.0) Allow colour options to use both the \definecolor and the \colorlet
% syntaxes, for example VerbatimColor={gray}{0.9} or VerbatimColor=red!10
% In the latter case we need the real \colorlet from xcolor package.
% Prior to 7.4.0 xcolor was not required and thus \spx@colorlet was configured
% to raise a warning in case of absence of xcolor.
\def\spx@defineorletcolor#1{%
    \def\spx@definedcolor{{#1}}%
    \futurelet\spx@token\spx@defineorlet}
\def\spx@defineorlet{%
    \ifx\spx@token\bgroup
    \expandafter\spx@definecolor\else\expandafter\spx@colorlet\fi}
\def\spx@colorlet#1\relax{\expandafter\colorlet\spx@definedcolor{#1}}
\def\spx@definecolor{\expandafter\definecolor\spx@definedcolor}
% These internals refactored at 7.4.0:
\newcommand*{\spx@DeclareColorOption}[3][]{%
% #1 = almost always "sphinx" but left empty for a few for legacy reasons
% #2 = option name, but internal colour name is #1#2 (i.e. with prefix)
% #3 = initial default colour with either \definecolor or \colorlet syntax
   % Set the initial default
   \spx@defineorletcolor{#1#2}#3\relax
   % Set the key handler to accept both \definecolor and \colorlet syntax
   % The key name does not have the #1 prefix from the colour name
   \define@key{sphinx}{#2}{\spx@defineorletcolor{#1#2}##1\relax}%
}%

% Handle options via "kvoptions" (later loaded by hyperref anyhow)
\RequirePackage{kvoptions}
\SetupKeyvalOptions{prefix=spx@opt@} % use \spx@opt@ prefix

% Optional usage of booktabs package for tables
\DeclareBoolOption[false]{booktabs}
\DeclareBoolOption[false]{borderless}
\DeclareBoolOption[true]{booktabscolorgaps}
\DeclareVoidOption{booktabsnogaps}{%
  \ifx\@nodocument\relax
  % in body
    \expandafter\@firstofone
  \else
  % in preamble, wait for at begin document
    \expandafter\AtBeginDocument
  \fi
  {\ifdefined\abovetopsep % silently do nothing if booktabs not loaded
      \abovetopsep\z@\belowrulesep\z@\aboverulesep\z@\belowbottomsep\z@
   \fi
  }%
}
% Coloured table rows
\DeclareBoolOption[false]{colorrows}
% Sphinx legacy text layout: 1in margins on all four sides
\ifx\@jsc@uplatextrue\@undefined
\DeclareStringOption[1in]{hmargin}
\DeclareStringOption[1in]{vmargin}
\DeclareStringOption[.5in]{marginpar}
\else
% Japanese standard document classes handle \mag in a special way
\DeclareStringOption[\inv@mag in]{hmargin}
\DeclareStringOption[\inv@mag in]{vmargin}
\DeclareStringOption[.5\dimexpr\inv@mag in\relax]{marginpar}
\fi

\DeclareStringOption[0]{maxlistdepth}% \newcommand*\spx@opt@maxlistdepth{0}
\DeclareStringOption[-1]{numfigreset}
\DeclareBoolOption[false]{nonumfigreset}
\DeclareBoolOption[false]{mathnumfig}
\DeclareStringOption[.]{mathnumsep}
\define@key{sphinx}{bookmarksdepth}{\AtBeginDocument{\hypersetup{bookmarksdepth=#1}}}
\AtBeginDocument{\define@key{sphinx}{bookmarksdepth}{\hypersetup{bookmarksdepth=#1}}}
% \DeclareBoolOption[false]{usespart}% not used

% Code-blocks
% -----------
%
% INFO: the keys for padding and border widths were extended at 5.1.0,
% and legacy names for user interface were kept, but their definitions
% are delayed further down.  The legacy internally used dimen registers
% \sphinxverbatimborder and \sphinxverbatimsep got removed at 6.2.0.
% More code-blocks related options are found in "CSS" part below.
\DeclareBoolOption[true]{verbatimwithframe}
\DeclareBoolOption[true]{verbatimwrapslines}
\DeclareBoolOption[false]{verbatimforcewraps}
\DeclareStringOption[3]{verbatimmaxoverfull}
\DeclareStringOption[100]{verbatimmaxunderfull}
\DeclareBoolOption[true]{verbatimhintsturnover}
\DeclareBoolOption[true]{inlineliteralwraps}
\DeclareStringOption[t]{literalblockcappos}
\DeclareStringOption[r]{verbatimcontinuedalign}
\DeclareStringOption[r]{verbatimcontinuesalign}
% parsed literal
\DeclareBoolOption[true]{parsedliteralwraps}
% \textvisiblespace for compatibility with fontspec+XeTeX/LuaTeX
\DeclareStringOption[\textcolor{red}{\textvisiblespace}]{verbatimvisiblespace}
\DeclareStringOption % must use braces to hide the brackets
  [{\makebox[2\fontcharwd\font`\x][r]{\textcolor{red}{\tiny$\m@th\hookrightarrow$}}}]%
  {verbatimcontinued}

% Topic boxes
% -----------
%
% 5.1.0 added new keys for configuration.  The legacy keys shadowsep,
% shadowsize, shadowrule were kept for backward compatibility.
% 5.1.2 fixed some bugs.
%
% All configuration is now to be found in the "CSS" section below.
%
% 6.2.0 removed \sphinxshadowsep, \sphinxshadowsize, \sphinxshadowrule
% \dimen registers

% Footnotes
% ---------
\DeclareStringOption[\mbox{ }]{AtStartFootnote}
% we need a public macro name for direct use in latex file
\newcommand*{\sphinxAtStartFootnote}{\spx@opt@AtStartFootnote}
% no such need for this one, as it is used inside other macros
\DeclareStringOption[\leavevmode\unskip]{BeforeFootnote}

% Some font styling
% -----------------
% TODO: the replacement of old syntax \py@HeaderFamily as used
% in sphinxlatexstyle{page,headings}.sty and sphinx{manual,howto}.cls
% has never been really put in place.  Hence this isolated tidbit here.
\DeclareStringOption[\sffamily\bfseries]{HeaderFamily}

% Some legacy colour options
% --------------------------
%
\spx@DeclareColorOption{TitleColor}{{rgb}{0.126,0.263,0.361}}
\spx@DeclareColorOption{InnerLinkColor}{{rgb}{0.208,0.374,0.486}}
\spx@DeclareColorOption{OuterLinkColor}{{rgb}{0.216,0.439,0.388}}
% The Verbatim ones are "legacy" only since 5.1.0... call it "new-legacy" ;-)
\spx@DeclareColorOption{VerbatimColor}{{RGB}{242,242,242}}% same as {gray}{0.95}
\spx@DeclareColorOption{VerbatimBorderColor}{{RGB}{32,32,32}}
% All other colours will be internally assigned a "sphinx" prefix

% Table row colors (since 6.0.0)
% ----------------
\spx@DeclareColorOption[sphinx]{TableRowColorHeader}{{gray}{0.86}}
\spx@DeclareColorOption[sphinx]{TableRowColorOdd}{{gray}{0.92}}
\spx@DeclareColorOption[sphinx]{TableRowColorEven}{{gray}{0.98}}
% if not set, the "Merge" colour will keep in sync with the "Row" colour
\def\sphinxTableMergeColorHeader{sphinxTableRowColorHeader}
\define@key{sphinx}{TableMergeColorHeader}{%
    \spx@defineorletcolor{sphinxTableMergeColorHeader}#1\relax
    \def\sphinxTableMergeColorHeader{sphinxTableMergeColorHeader}%
}%
\def\sphinxTableMergeColorOdd{sphinxTableRowColorOdd}
\define@key{sphinx}{TableMergeColorOdd}{%
    \spx@defineorletcolor{sphinxTableMergeColorOdd}#1\relax
    \def\sphinxTableMergeColorOdd{sphinxTableMergeColorOdd}%
}%
\def\sphinxTableMergeColorEven{sphinxTableRowColorEven}
\define@key{sphinx}{TableMergeColorEven}{%
    \spx@defineorletcolor{sphinxTableMergeColorEven}#1\relax
    \def\sphinxTableMergeColorEven{sphinxTableMergeColorEven}%
}%
% Default color chosen to be as in minted.sty LaTeX package!
\spx@DeclareColorOption[sphinx]{VerbatimHighlightColor}{{rgb}{0.878,1,1}}

% Notices/admonitions
% -------------------
%
% 5.1.0 added much customizability to warning, caution, attention, danger and
% error types of notices via an enhanced sphinxheavybox environment.
%
% 6.2.0 added the possibility to use the same kind of rendering also for
% note, hint, important, and tip.
%
% Legacy user interface for options was kept working.  All of it is handled in
% the "CSS" section below.
%
% 6.2.0 added booleans to serve internally as a record of whether the
% note, hint, important and tip admonitions used the legacy "lightbox" or
% the then enhanced "heavybox" environment.
%
% 7.4.0 uses "heavybox" environment from sphinxlatexadmonitions in all cases,
% hence the booleans mentioned above have been removed as well as the rather
% complex TeX code which was done so that these booleans were made true if
% and only if the CSS-named keys had been made usage of via 'sphinxsetup'.
%
% The "light style" implemented in sphinxlatexadmonitions.sty as
% "sphinxlightbox" is not used.  Also, admonitions by default have a "title
% row", and the corresponding options are only named in the CSS style which is
% implemented further below.  Here we define options having a legacy name.
%
% seealso directive is also using "heavybox" at 7.4.0 acquiring the same
% customizability as admonitions.
% todo directive also.
\definecolor{sphinx-admonition-bgcolor}      {RGB}{247, 247, 247}% #F7F7F7
\definecolor{sphinx-admonition-bordercolor}  {RGB}{134, 152, 155}% #86989B
\definecolor{sphinx-warning-bordercolor}     {RGB}{148, 0, 0}%     #940000
\definecolor{sphinx-error-bordercolor}       {RGB}{180, 0, 0}%     #B40000
\spx@DeclareColorOption[sphinx]{noteBorderColor}     {sphinx-admonition-bordercolor}
\spx@DeclareColorOption[sphinx]{hintBorderColor}     {sphinx-admonition-bordercolor}
\spx@DeclareColorOption[sphinx]{importantBorderColor}{sphinx-admonition-bordercolor}
\spx@DeclareColorOption[sphinx]{tipBorderColor}      {sphinx-admonition-bordercolor}
\spx@DeclareColorOption[sphinx]{seealsoBorderColor}  {sphinx-admonition-bordercolor}% 7.4.0
\spx@DeclareColorOption[sphinx]{todoBorderColor}     {sphinx-admonition-bordercolor}% 7.4.0
%
\spx@DeclareColorOption[sphinx]{noteBgColor}     {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{hintBgColor}     {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{importantBgColor}{sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{tipBgColor}      {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{seealsoBgColor}  {sphinx-admonition-bgcolor}% 7.4.0
\spx@DeclareColorOption[sphinx]{todoBgColor}     {sphinx-admonition-bgcolor}% 7.4.0
%
\spx@DeclareColorOption[sphinx]{warningBorderColor}  {sphinx-warning-bordercolor}
\spx@DeclareColorOption[sphinx]{cautionBorderColor}  {sphinx-warning-bordercolor}
\spx@DeclareColorOption[sphinx]{attentionBorderColor}{sphinx-warning-bordercolor}
\spx@DeclareColorOption[sphinx]{dangerBorderColor}   {sphinx-warning-bordercolor}
\spx@DeclareColorOption[sphinx]{errorBorderColor}    {sphinx-error-bordercolor}
%
\spx@DeclareColorOption[sphinx]{warningBgColor}  {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{cautionBgColor}  {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{attentionBgColor}{sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{dangerBgColor}   {sphinx-admonition-bgcolor}
\spx@DeclareColorOption[sphinx]{errorBgColor}    {sphinx-admonition-bgcolor}
%
%%%%%%%%
%
% Additions of CSS-like keys at 5.1.0 (and possibility of rounded boxes)
% -----------------------------------
%
% These CSS-named alikes allow to configure 4 border widths, 4 padding seps, 4
% corner radii, optional shadow, border color, background color, shadow color.
%
% In future, an alternative user interface will perhaps be provided to parse
% genuine CSS, but this will be easier to do in Python than in LaTeX.
%
% Refactoring (and extension) at 6.2.0
% ------------------------------------
%
% 6.2.0 batch defines in one go all auxiliaries for code-blocks, topics, and
% admonitions.  The needed steps to maintain the legacy option names working
% and to set some specific defaults are handled in a second step.
%
% This allowed to:
%
% - associate these CSS-named options also to note, hint, important, and tip
% which thus can access the full customizability of sphinxheavybox if they use
% it.
%
% - provide a \sphinxbox command for boxing inline text elements with the same
% full customizability.
%
% The \dimen's \sphinxverbatimborder, \sphinxverbatimsep, \sphinxshadowsep,
% \sphinxshadowsize, and \sphinxshadowrule, which had been deprecated have
% finally been removed entirely.  No more \dimen register is used here only
% storage in macros.
%
% Restyling at 7.4.0 with new defaults for all admonition types
% -------------------------------------------------------------
%
% So far the 5.1.0 added possibilities for fancier boxes had been used by
% default only for code-blocks, and admonitions kept their old-fashioned
% legacy styles.  At 7.4.0, as a follow-up to the revamped styles of
% admonitions in the HTML sphinx13 theme (PR #12439), it is decided to
% apply similar styling for PDF output.  Also the seealso directive
% is handled as an admonition with the same customizability. And the
% todo directive.
%
% 8.1.0: style separately topic, contents, and sidebar directives
% ---------------------------------------------------------------
%
% And use some title row also for them (but without icon, per default).
%
\def\spxstring@none{none}
\def\spxstring@clone{clone}
%
% Border keys
% At 7.4.0 refactoring to avoid defining legacy \spx@<type>@border
% macros which are (now) used nowhere, only @top, @right, @bottom, @left.
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1border@top\expandafter\endcsname
  \csname #1border@right\expandafter\endcsname
  \csname #1border@bottom\expandafter\endcsname
  \csname #1border@left\expandafter\endcsname
  \csname if#1border@open\expandafter\endcsname
  \csname #1border@opentrue\expandafter\endcsname
  \csname #1border@openfalse\endcsname
}%
\def\spx@tempb #1#2#3#4#5#6#7#8#9{% #8 = option prefix
  \define@key{sphinx}{#8border-top-width}{\def#1{##1}}%
  \define@key{sphinx}{#8border-right-width}{\def#2{##1}}%
  \define@key{sphinx}{#8border-bottom-width}{\def#3{##1}}%
  \define@key{sphinx}{#8border-left-width}{\def#4{##1}}%
  \define@key{sphinx}{#8border-width}{%
    % MEMO: not immediately expanded, should this be changed?
    \def#1{##1}\let#2#1\let#3#1\let#4#1%
    }%
  \newif#5%
  % 6.2.0 has added support for box-decoration-break also to admonition
  % directives, formerly the option setting was ignored for them.
  \define@key{sphinx}{#8box-decoration-break}%
           {\begingroup\edef\spx@tempa{##1}\expandafter\endgroup
            \ifx\spx@tempa\spxstring@clone#7\else#6\fi}%
  % 7.4.0 sets the default behaviour to "slice" not only for code-blocks but
  % also for admonitions, as the latter now have a background colour each.
  #6%
  % #8 = option prefix (with underscore), #9 = legacy option name
  % keep legacy option names as aliases to new-named options
  \expandafter\let\csname KV@sphinx@#9\expandafter\endcsname
                  \csname KV@sphinx@#8border-width\endcsname
  % init border-width (fetches next argument)
  \csname KV@sphinx@#8border-width\endcsname
}
% MEMO: from 6.2.0 to 7.4.0 (excluive) \fboxrule was used in the first
% two, and was resolved only at location of use.  At 7.4.0, we again
% use 0.4pt rather and not \fboxrule dimen register.
%          macro prefix   option prefix   legacy option    init value
\spx@tempa{spx@pre@}      {pre_}          {verbatimborder} {0.4pt}
\spx@tempa{spx@topic@}    {div.topic_}    {shadowrule}     {0.5pt}% mod. at 7.4.0
\spx@tempa{spx@contents@} {div.contents_} {shadowrule}     {0.5pt}% 8.1.0
\spx@tempa{spx@sidebar@}  {div.sidebar_}  {shadowrule}     {1pt}%   8.1.0
% let legacy shadowrule key set all topic/contents/sidebar border
% keys to the common value given by user to shadowrule
\def\KV@sphinx@shadowrule #1{%
  \@nameuse{KV@sphinx@div.topic_border-width}{#1}%
  \@nameuse{KV@sphinx@div.contents_border-width}{#1}%
  \@nameuse{KV@sphinx@div.sidebar_border-width}{#1}%
}%
\spx@tempa{spx@note@}     {div.note_}     {noteborder}     {0.5pt}
\spx@tempa{spx@hint@}     {div.hint_}     {hintborder}     {0.5pt}
\spx@tempa{spx@important@}{div.important_}{importantborder}{0.5pt}
\spx@tempa{spx@tip@}      {div.tip_}      {tipborder}      {0.5pt}
\spx@tempa{spx@seealso@}  {div.seealso_}  {seealsoborder}  {0.5pt}% new at 7.4.0
\spx@tempa{spx@todo@}     {div.todo_}     {todoborder}     {0.5pt}% new at 7.4.0
\spx@tempa{spx@warning@}  {div.warning_}  {warningborder}  {1pt}
\spx@tempa{spx@caution@}  {div.caution_}  {cautionborder}  {1pt}
\spx@tempa{spx@attention@}{div.attention_}{attentionborder}{1pt}
\spx@tempa{spx@danger@}   {div.danger_}   {dangerborder}   {1pt}
\spx@tempa{spx@error@}    {div.error_}    {errorborder}    {1.25pt}% mod. at 7.4.0
% this one new at 6.2.0: (we do not create a "legacy name" for it)
\spx@tempa{spx@box@}      {box_}          {box_border-width}{0.4pt}
% Reset default box-decoration-break style to "clone" for \sphinxbox,
% but anyhow this is ignored as \sphinxbox produces unbreakable boxes.
\spx@box@border@openfalse

% Padding keys
% At 7.4.0, \spx@<type>@padding internal macros removed, only @top, @right,
% @bottom, @left are actually needed by sphinxpackageboxes.sty.
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname #1padding@top\expandafter\endcsname
  \csname #1padding@right\expandafter\endcsname
  \csname #1padding@bottom\expandafter\endcsname
  \csname #1padding@left\endcsname
}%
\def\spx@tempb #1#2#3#4#5#6#7#8#9{% #5 = option prefix
  \define@key{sphinx}{#5padding-top}{\def#1{##1}}%
  \define@key{sphinx}{#5padding-right}{\def#2{##1}}%
  \define@key{sphinx}{#5padding-bottom}{\def#3{##1}}%
  \define@key{sphinx}{#5padding-left}{\def#4{##1}}%
  \define@key{sphinx}{#5padding}{%
     \def#1{##1}\let#2#1\let#3#1\let#4#1%
  }%
  % initial defaults
  \def#1{#6}\def#2{#7}\def#3{#8}\def#4{#9}%
}
% MEMO: prior to 6.2.0 the \fboxsep value (3pt, a priori) was frozen here via
% a \dimen assignment done immediately. From 6.2.0 to 7.4.0 an unfrozen
% \fboxsep was used, and at 7.4.0 it is again explicit 3pt.
% The defaults for admonitions were all modified at 7.4.0.
% For topic/contents and all admonitions the horizontal padding plus borders
% are put inside the text area (i.e. do not go into the margins).
% In order for perfect exact same vertical alignment of contents from all such
% directives, the value of horizontal border-width+padding is kept constant
% (equal to 7.5pt since 7.4.0).
% 8.1.0 styles separately topic, contents, and sidebar.
%         #1 macro prefix #6 option prefix   top right bottom left
\spx@tempa{spx@pre@}      {pre_}            {3pt}{3pt}{3pt}{3pt}
\spx@tempa{spx@topic@}    {div.topic_}      {6pt}{7pt}{6pt}{7pt}% mod. at 8.1.0
% contents styling inherits at 8.1.0 the former 7.4.0 topic defaults
\spx@tempa{spx@contents@} {div.contents_}   {10pt}{7pt}{12pt}{7pt}%   8.1.0
\spx@tempa{spx@sidebar@}  {div.sidebar_}    {6pt}{6.5pt}{6pt}{6.5pt}% 8.1.0
% 7.4.0 drops legacy settings which linked strangely padding with border width
\spx@tempa{spx@note@}     {div.note_}       {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@hint@}     {div.hint_}       {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@important@}{div.important_}  {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@tip@}      {div.tip_}        {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@seealso@}  {div.seealso_}    {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@todo@}     {div.todo_}       {6pt}{7pt}{6pt}{7pt}
\spx@tempa{spx@warning@}  {div.warning_}    {6pt}{6.5pt}{6pt}{6.5pt}
\spx@tempa{spx@caution@}  {div.caution_}    {6pt}{6.5pt}{6pt}{6.5pt}
\spx@tempa{spx@attention@}{div.attention_}  {6pt}{6.5pt}{6pt}{6.5pt}
\spx@tempa{spx@danger@}   {div.danger_}     {6pt}{6.5pt}{6pt}{6.5pt}
\spx@tempa{spx@error@}    {div.error_}      {6pt}{6.25pt}{6pt}{6.25pt}
\spx@tempa{spx@box@}      {box_}            {3pt}{3pt}{3pt}{3pt}
% define legacy verbatimsep key as alias of pre_padding key
\expandafter\let\expandafter\KV@sphinx@verbatimsep\csname KV@sphinx@pre_padding\endcsname
% let legacy shadowsep key set all topic/contents/sidebar padding
% keys to the common value given by user to shadosep
\def\KV@sphinx@shadowsep #1{%
  \@nameuse{KV@sphinx@div.topic_padding}{#1}%
  \@nameuse{KV@sphinx@div.contents_padding}{#1}%
  \@nameuse{KV@sphinx@div.sidebar_padding}{#1}%
}%

% Corner radii keys
%
% Prior to 6.2.0, the "rounded box" branch obeyed the 4 radii but ignored
% the separate border widths and used only the border-width setting.
% Now, all 4 + 4 parameters are obeyed.
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1radius@topleft\expandafter\endcsname
  \csname #1radius@topright\expandafter\endcsname
  \csname #1radius@bottomright\expandafter\endcsname
  \csname #1radius@bottomleft\endcsname
}%
\def\spx@tempb #1#2#3#4#5#6#7#8#9{% #5 = option prefix
  \define@key{sphinx}{#5border-top-left-radius}{\def#1{##1}}%
  \define@key{sphinx}{#5border-top-right-radius}{\def#2{##1}}%
  \define@key{sphinx}{#5border-bottom-right-radius}{\def#3{##1}}%
  \define@key{sphinx}{#5border-bottom-left-radius}{\def#4{##1}}%
  \define@key{sphinx}{#5border-radius}{\def#1{##1}\let#2#1\let#3#1\let#4#1}%
  \def#1{#6}\def#2{#7}\def#3{#8}\def#4{#9}%
}
% The init value for corner radius in code-blocks was \z@ (i.e. 0pt) prior
% to 6.0.0., then 3pt, then \fboxsep at 6.2.0 as padding was also \fboxsep.
% At 7.4.0:
% - the 3pt is used (which is normal value of \fboxsep).
% - some admonitions use rounded corners as well.
% - topic boxed have only their bottom right corner rounded.
% At 8.1.0 topic, contents and sidebar separately styled.
%          macro prefix    option prefix     tl   tr   br   bl
\spx@tempa{spx@pre@}      {pre_}            {3pt}{3pt}{3pt}{3pt}
% use four rounded corners (and no shadow) for topic at 8.1.0
\spx@tempa{spx@topic@}    {div.topic_}      {8pt}{8pt}{8pt}{8pt}
% contents inherits at 8.1.0 the 7.4.0 former styling of topic
\spx@tempa{spx@contents@} {div.contents_}   \z@  \z@  {12pt} \z@
% make sidebard distinctive as we can't really safely implement
% it with text flowing around it, but rather as a full width block
\spx@tempa{spx@sidebar@}  {div.sidebar_}    {12pt}\z@ {12pt} \z@
\spx@tempa{spx@note@}     {div.note_}       {5pt}{5pt}{5pt}{5pt}
\spx@tempa{spx@hint@}     {div.hint_}       {5pt}{5pt}{5pt}{5pt}
\spx@tempa{spx@important@}{div.important_}  \z@\z@\z@\z@
\spx@tempa{spx@tip@}      {div.tip_}        {5pt}{5pt}{5pt}{5pt}
\spx@tempa{spx@seealso@}  {div.seealso_}    \z@\z@\z@\z@
\spx@tempa{spx@todo@}     {div.todo_}       \z@\z@\z@\z@
\spx@tempa{spx@warning@}  {div.warning_}    \z@\z@\z@\z@
\spx@tempa{spx@caution@}  {div.caution_}    \z@\z@\z@\z@
\spx@tempa{spx@attention@}{div.attention_}  \z@\z@\z@\z@
\spx@tempa{spx@danger@}   {div.danger_}     \z@\z@\z@\z@
\spx@tempa{spx@error@}    {div.error_}      \z@\z@\z@\z@
\spx@tempa{spx@box@}      {box_}            {3pt}{3pt}{3pt}{3pt}

% Shadow keys
%
% Prior to 6.2.0, an "inset" shadow caused the rendering to ignore
% rounded corners.  Starting with 6.2.0, an "inset" shadow is simply
% ignored (not implemented) if any of the corner radii is positive,
% rather than forcing a rectangle+inset shadow output.
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname if#1withshadow\expandafter\endcsname
  \csname if#1insetshadow\endcsname
}%
\def\spx@tempb#1#2{\newif#1\newif#2}%
%          macro prefix
\spx@tempa{spx@pre@}
\spx@tempa{spx@topic@}
\spx@tempa{spx@contents@}% 8.1.0
\spx@tempa{spx@sidebar@}% 8.1.0
\spx@tempa{spx@note@}
\spx@tempa{spx@hint@}
\spx@tempa{spx@important@}
\spx@tempa{spx@tip@}
\spx@tempa{spx@seealso@}% 7.4.0
\spx@tempa{spx@todo@}% 7.4.0
\spx@tempa{spx@warning@}
\spx@tempa{spx@caution@}
\spx@tempa{spx@attention@}
\spx@tempa{spx@danger@}
\spx@tempa{spx@error@}
\spx@tempa{spx@box@}
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1withshadowtrue\expandafter\endcsname
  \csname #1withshadowfalse\expandafter\endcsname
  \csname #1insetshadowtrue\expandafter\endcsname
  \csname #1insetshadowfalse\expandafter\endcsname
  \csname #1shadow@setter\expandafter\endcsname
  \csname #1shadow@xoffset\expandafter\endcsname
  \csname #1shadow@yoffset\endcsname
}%
\def\spx@tempb#1#2#3#4#5#6#7#8{% #8 = option prefix
  \define@key{sphinx}{#8box-shadow}{#5##1 {} {} \@nnil}%
  \def#5##1 ##2 ##3 ##4\@nnil{%
  \begingroup\edef\spx@tempa{##1}\expandafter\endgroup
  \ifx\spx@tempa\spxstring@none
        #2%
        % MEMO: at 5.1.0 and up to 6.2.0, an \edef with \number\dimexpr was
        % used here.  Since 6.2.0, expansion is delayed to time of use as for
        % the other dimensions handled above.  This is synched with an added
        % encapsulation in \dimexpr...\relax by the "setup" from
        % sphinxpackageboxes.sty.
  \else #1%
        \def#6{##1}%
        \if\relax\detokenize{##2}\relax\let#7#6\else\def#7{##2}\fi
        \if\relax\detokenize{##3}\relax#4\else#3\fi
  \fi
  }%
  #5none {} {} \@nnil % no shadow by default (except for topic, see below)
}
\spx@tempa{spx@pre@}      {pre_}
\spx@tempa{spx@topic@}    {div.topic_}
\spx@tempa{spx@contents@} {div.contents_}
\spx@tempa{spx@sidebar@}  {div.sidebar_}
% This corresponds to the legacy parameters for topic/contents/sidebar,
% but they are now only kept for contents
    \spx@contents@shadow@setter 4pt 4pt {} \@nnil
% topic and sidebar default to no shadow
\spx@tempa{spx@note@}     {div.note_}
\spx@tempa{spx@hint@}     {div.hint_}
\spx@tempa{spx@important@}{div.important_}
\spx@tempa{spx@tip@}      {div.tip_}
\spx@tempa{spx@seealso@}  {div.seealso_}
\spx@tempa{spx@todo@}     {div.todo_}
\spx@tempa{spx@warning@}  {div.warning_}
\spx@tempa{spx@caution@}  {div.caution_}
\spx@tempa{spx@attention@}{div.attention_}
\spx@tempa{spx@danger@}   {div.danger_}
\spx@tempa{spx@error@}    {div.error_}
\spx@tempa{spx@box@}      {box_}

% Support for legacy shadowsize (topic/contents/sidebar)
% This definition was broken due to a typo at 5.1.0 and got fixed at 6.1.2
% MEMO: at 6.2.0 this no longer does \number\dimexpr in an \edef.  Reason is to
% keep in sync with div.topic_box-shadow handling of xoffset and yoffset.
\define@key{sphinx}{shadowsize}{%
  \def\spx@topic@shadow@xoffset{#1}%
  \let\spx@contents@shadow@xoffset\spx@topic@shadow@xoffset
  \let\spx@sidebar@shadow@xoffset \spx@topic@shadow@xoffset
  \let\spx@topic@shadow@yoffset   \spx@topic@shadow@xoffset
  \let\spx@contents@shadow@yoffset\spx@topic@shadow@xoffset
  \let\spx@sidebar@shadow@yoffset \spx@topic@shadow@xoffset
  \ifdim\dimexpr\spx@topic@shadow@xoffset=\z@
      \spx@topic@withshadowfalse
      \spx@contents@withshadowfalse
      \spx@sidebar@withshadowfalse
  \else
      \spx@topic@withshadowtrue
      \spx@topic@insetshadowfalse
      \spx@contents@withshadowtrue
      \spx@contents@insetshadowfalse
      \spx@sidebar@withshadowtrue
      \spx@sidebar@insetshadowfalse
  \fi
}%

% Color keys, TeXextras key, keys for admonition titles with icon
%
% Historical remarks to be removed at some point:
%
% Some problems due to legacy naming scheme which had diverging conventions
% for code-blocks (VerbatimBorderColor, VerbatimColor) and admonitions
% (sphinxwarningBorderColor, sphinxwarningBgColor, etc...)  regarding the
% internal names of the used colors.  Unfortunately VerbatimColor and for
% example sphinxwarningBgColor are also documented at user level, they are not
% only internally used.
%
% For topic directive, "legacy" (around 2016-2017) had no interface for
% colours, so some internals could be changed with no breakage during 5.x up
% to 6.2.0.  For example topic (shadowbox) could be unified with admonitions
% (sphinxheavybox), and the "setup" macros could all be moved into a single
% one in the sphinxpackageboxes.sty file, with only one argument holding the
% directive type.
%
% It was then needed only by sphinxlatexliterals.sty to let its emitted
% \spx@verb@boxes@fcolorbox@setup incorporate some extra adjustment.
%
% 7.4.0 removes usages of booleans relative to usage of a colour for
% background or border which were there to optimize the boxing code from
% sphinxpackageboxes.sty when colours where not needed.  These were internal
% macros so their removal should not be considered breaking.
% We keep the infrastructure for "shadowcolor" and "textcolor" because the
% defaults for them remain not to have specific colour.
%
% 7.4.0 adds keys for admonition titles: for background and foreground colors,
% and for icons (whose defaults are picked from Free Fontawesome 5).
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname if#1withshadowcolor\expandafter\endcsname
  \csname if#1withtextcolor\endcsname
}%
\def\spx@tempb#1#2{\newif#1\newif#2}%
%          macro prefix
\spx@tempa{spx@pre@}
\spx@tempa{spx@topic@}
\spx@tempa{spx@contents@}
\spx@tempa{spx@sidebar@}
\spx@tempa{spx@note@}
\spx@tempa{spx@hint@}
\spx@tempa{spx@important@}
\spx@tempa{spx@tip@}
\spx@tempa{spx@seealso@}
\spx@tempa{spx@todo@}
\spx@tempa{spx@warning@}
\spx@tempa{spx@caution@}
\spx@tempa{spx@attention@}
\spx@tempa{spx@danger@}
\spx@tempa{spx@error@}
\spx@tempa{spx@box@}
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1withshadowcolortrue\expandafter\endcsname
  \csname #1withtextcolortrue\expandafter\endcsname
  \csname #1TeXextras\endcsname
}
% 7.4.0 adds options for a title.  They have an action only for admonitions,
% seealso and todo directives.
\def\spx@tempb#1#2#3#4#5{% #4 = option prefix, #5 = color name prefix
  \define@key{sphinx}{#4border-TeXcolor}%
     {\spx@defineorletcolor{#5BorderColor}##1\relax}%
  \define@key{sphinx}{#4background-TeXcolor}%
     {\spx@defineorletcolor{#5BgColor}##1\relax}%
  \define@key{sphinx}{#4title-background-TeXcolor}%
     {\spx@defineorletcolor{#5TtlBgColor}##1\relax}%
  \define@key{sphinx}{#4title-foreground-TeXcolor}%
     {\spx@defineorletcolor{#5TtlFgColor}##1\relax}%
  \define@key{sphinx}{#4title-icon}%
     {\@namedef{#5TtlIcon}{##1}}%
  \define@key{sphinx}{#4box-shadow-TeXcolor}%
     {#1\spx@defineorletcolor{#5ShadowColor}##1\relax}%
  \define@key{sphinx}{#4TeXcolor}%
     {#2\spx@defineorletcolor{#5TextColor}##1\relax}%
  \define@key{sphinx}{#4TeXextras}%
     {\def#3{##1}}%
}
%          macro prefix    option prefix    color name prefix
\spx@tempa{spx@pre@}      {pre_}            {Verbatim}
    % (memo: internal VerbatimShadowColor was formerly sphinxVerbatimShadowColor)
    % internal legacy color name is VerbatimColor not VerbatimBgColor, so redefine:
    \define@key{sphinx}{pre_background-TeXcolor}%
      {\spx@defineorletcolor{VerbatimColor}#1\relax}%
    % Keep legacy option names working
    \expandafter\let\expandafter\KV@sphinx@VerbatimBorderColor
                                \csname KV@sphinx@pre_border-TeXcolor\endcsname
    \expandafter\let\expandafter\KV@sphinx@VerbatimColor
                                \csname KV@sphinx@pre_background-TeXcolor\endcsname
% (6.2.0 modified some internal namings for the colors of topic boxes)
%          macro prefix   option prefix     color name prefix
% There was no legacy interface for topic/contents/sidebar
% 8.1.0 allows separate styling for topic/contents/sidebar
\spx@tempa{spx@topic@}    {div.topic_}      {sphinxtopic}
\spx@tempa{spx@contents@} {div.contents_}   {sphinxcontents}
\spx@tempa{spx@sidebar@}  {div.sidebar_}    {sphinxsidebar}
\spx@tempa{spx@note@}     {div.note_}       {sphinxnote}
\spx@tempa{spx@hint@}     {div.hint_}       {sphinxhint}
\spx@tempa{spx@important@}{div.important_}  {sphinximportant}
\spx@tempa{spx@tip@}      {div.tip_}        {sphinxtip}
\spx@tempa{spx@seealso@}  {div.seealso_}    {sphinxseealso}
\spx@tempa{spx@todo@}     {div.todo_}       {sphinxtodo}
\spx@tempa{spx@warning@}  {div.warning_}    {sphinxwarning}
\spx@tempa{spx@caution@}  {div.caution_}    {sphinxcaution}
\spx@tempa{spx@attention@}{div.attention_}  {sphinxattention}
\spx@tempa{spx@danger@}   {div.danger_}     {sphinxdanger}
\spx@tempa{spx@error@}    {div.error_}      {sphinxerror}
\spx@tempa{spx@box@}      {box_}            {sphinxbox}
    % Keep legacy sphinxsetup color options interface for "strong" admonitions
    \def\spx@tempa#1#2{% #1 = option prefix, #2 = legacy option prefix
      \expandafter\let\csname KV@sphinx@#2BorderColor\expandafter\endcsname
                      \csname KV@sphinx@#1border-TeXcolor\endcsname
      \expandafter\let\csname KV@sphinx@#2BgColor\expandafter\endcsname
                      \csname KV@sphinx@#1background-TeXcolor\endcsname
    }
    \spx@tempa{div.warning_}    {warning}
    \spx@tempa{div.caution_}    {caution}
    \spx@tempa{div.attention_}  {attention}
    \spx@tempa{div.danger_}     {danger}
    \spx@tempa{div.error_}      {error}

    % Keep legacy sphinxsetup <type>BorderColor for <type>=note, hint, ...
    % Add "legacy" names <type>BgColor (added at 7.4.0) and <type>TextColor
    \def\spx@tempa#1#2{% #1 = CSS like option prefix, #2 = legacy option prefix
      \expandafter\let\csname KV@sphinx@#2BorderColor\expandafter\endcsname
                      \csname KV@sphinx@#1border-TeXcolor\endcsname
      \expandafter\let\csname KV@sphinx@#2BgColor\expandafter\endcsname
                      \csname KV@sphinx@#1background-TeXcolor\endcsname
      \expandafter\let\csname KV@sphinx@#2TextColor\expandafter\endcsname
                      \csname KV@sphinx@#1TeXcolor\endcsname
    }
    \spx@tempa{div.note_}       {note}
    \spx@tempa{div.hint_}       {hint}
    \spx@tempa{div.important_}  {important}
    \spx@tempa{div.tip_}        {tip}

    % Add "legacy" hintTeXextras etc...
    \def\spx@tempa#1#2{% #1 = CSS like option prefix, #2 = legacy option prefix
      \expandafter\let\csname KV@sphinx@#2TeXextras\expandafter\endcsname
                      \csname KV@sphinx@#1TeXextras\endcsname
    }
    \spx@tempa{div.note_}       {note}
    \spx@tempa{div.hint_}       {hint}
    \spx@tempa{div.important_}  {important}
    \spx@tempa{div.tip_}        {tip}

    % At 7.4.0, let topic/contents boxes acquire background and border colours
    % and give the shadow some colour other than black
    % 8.1.0 styles separately topic/contents/sidebar
    % topic has no shadow but we keep 7.4.0 color in case it gets needed
    \setkeys{sphinx}{%
        div.topic_border-TeXcolor=sphinx-admonition-bordercolor,
        div.topic_background-TeXcolor=sphinx-admonition-bgcolor,
        div.topic_box-shadow-TeXcolor={RGB}{108,108,108},
        div.contents_border-TeXcolor=sphinx-admonition-bordercolor,
        div.contents_background-TeXcolor=sphinx-admonition-bgcolor,
        div.contents_box-shadow-TeXcolor={RGB}{108,108,108},
        div.sidebar_border-TeXcolor=sphinx-admonition-bordercolor,
        div.sidebar_background-TeXcolor=sphinx-admonition-bgcolor,
        div.sidebar_box-shadow-TeXcolor=sphinx-admonition-bordercolor!80,% #9eacaf
    }


% 7.4.0 lets all types of admonitions style especially their titlss.
% The Sphinx default colours for admonition titles are copied from PR #12486
% which modified sphinx13.css (see also earlier #12439)
% The actual code using the colours and icons whose defaults are set here
% is to be found in sphinxlatexadmonitions.sty.
%
% MEMO: unfortunately xcolor does NOT implement HSL but only HSB!
% So the sphinx13.css colours specified via hsl() got converted to RGB here
\definecolor{sphinx-admonition-title-bgcolor}{RGB}{229,229,229} % hsl(0, 0%, 90%);
\definecolor{sphinx-admonition-title-fgcolor}{RGB}{127,127,127} % hsl(0, 0%, 50%);
\definecolor{sphinx-warning-title-bgcolor}   {RGB}{248,228,210} % hsl(28.5, 74%, 90%);
\definecolor{sphinx-warning-title-fgcolor}   {RGB}{221,122,33}  % hsl(28.5, 74%, 50%);
\definecolor{sphinx-note-title-bgcolor}      {RGB}{208,222,250} % hsl(219.5, 84%, 90%);
\definecolor{sphinx-note-title-fgcolor}      {RGB}{20,93,234}   % hsl(219.5, 84%, 50%);
\definecolor{sphinx-success-title-bgcolor}   {RGB}{220,239,230} % hsl(150, 36.7%, 90%);
\definecolor{sphinx-success-title-fgcolor}   {RGB}{81,174,128}  % hsl(150, 36.7%, 50%);
\definecolor{sphinx-error-title-bgcolor}     {RGB}{238,220,220} % hsl(0, 37%, 90%);
\definecolor{sphinx-error-title-fgcolor}     {RGB}{174,80,80}   % hsl(0, 37%, 50%);
\definecolor{sphinx-todo-title-bgcolor}      {RGB}{226,204,254} % hsl(266.8, 100%, 90%);
\definecolor{sphinx-todo-title-fgcolor}      {RGB}{113,0,255}   % hsl(266.8, 100%, 50%);

% Now use the above colours as default settings, following the choices
% done in sphinx13.css
\setkeys{sphinx}{
  div.note_title-background-TeXcolor=sphinx-note-title-bgcolor,
  div.note_title-foreground-TeXcolor=sphinx-note-title-fgcolor,
%
  div.hint_title-background-TeXcolor=sphinx-success-title-bgcolor,
  div.hint_title-foreground-TeXcolor=sphinx-success-title-fgcolor,
  div.tip_title-background-TeXcolor=sphinx-success-title-bgcolor,
  div.tip_title-foreground-TeXcolor=sphinx-success-title-fgcolor,
  div.seealso_title-background-TeXcolor=sphinx-success-title-bgcolor,
  div.seealso_title-foreground-TeXcolor=sphinx-success-title-fgcolor,
  div.todo_title-background-TeXcolor=sphinx-todo-title-bgcolor,
  div.todo_title-foreground-TeXcolor=sphinx-todo-title-fgcolor,
%
  div.important_title-background-TeXcolor=sphinx-warning-title-bgcolor,
  div.important_title-foreground-TeXcolor=sphinx-warning-title-fgcolor,
  div.caution_title-background-TeXcolor=sphinx-warning-title-bgcolor,
  div.caution_title-foreground-TeXcolor=sphinx-warning-title-fgcolor,
  div.warning_title-background-TeXcolor=sphinx-warning-title-bgcolor,
  div.warning_title-foreground-TeXcolor=sphinx-warning-title-fgcolor,
%
  div.attention_title-background-TeXcolor=sphinx-error-title-bgcolor,
  div.attention_title-foreground-TeXcolor=sphinx-error-title-fgcolor,
  div.danger_title-background-TeXcolor=sphinx-error-title-bgcolor,
  div.danger_title-foreground-TeXcolor=sphinx-error-title-fgcolor,
  div.error_title-background-TeXcolor=sphinx-error-title-bgcolor,
  div.error_title-foreground-TeXcolor=sphinx-error-title-fgcolor,
%
% 8.1.0 add title rows, but will not use icons per default, so
% the fgcolor setting will be used only if user uses title-icon key
  div.topic_title-background-TeXcolor=sphinx-admonition-title-bgcolor,
  div.topic_title-foreground-TeXcolor=sphinx-admonition-title-fgcolor,
  div.contents_title-background-TeXcolor=sphinx-admonition-title-bgcolor,
  div.contents_title-foreground-TeXcolor=sphinx-admonition-title-fgcolor,
  div.sidebar_title-background-TeXcolor=sphinx-note-title-bgcolor,
  div.sidebar_title-foreground-TeXcolor=sphinx-note-title-fgcolor,
}

% 7.4.0 Support for icons in admonition titles
% We try to
% - get Sphinx PDF builds to process fine in absence of fontawesome5
% - use fontawesome5 if present, but not if user prefers another package
% - provide an interface for using other LaTeX code for icons
% - provide an interface for using some other package than fontawesome5
% Indeed we can't load fontawesome5 unconditionally even if available,
% as it proves incompatible with fontawesome package.
% We thus must delay its loading.
\IfFileExists{fontawesome5.sty}{%
  \DeclareStringOption[fontawesome5]{iconpackage}%
}%
{%
  \IfFileExists{fontawesome.sty}
  {\DeclareStringOption[fontawesome]{iconpackage}}
  {\DeclareStringOption[none]{iconpackage}}%
}%
\newcommand\spx@faIcon[2][]{}%
% The above \spx@faIcon which gobbles one mandatory and one optional
% argument is put into use only if both fontawesome5 and fontawesome
% LaTeX packages are not available, as part of the defaults for the
% div.*_title-icon keys (these keys can be redefined via the sphinxsetup
% interface).
%
\def\spxstring@fontawesome{fontawesome}
\def\spxstring@fontawesomev{fontawesome5}
\AtBeginDocument{%
  \ifx\spx@opt@iconpackage\spxstring@none
  \else
      \IfFileExists{\spx@opt@iconpackage.sty}
         {\RequirePackage{\spx@opt@iconpackage}%
          \ifx\spx@opt@iconpackage\spxstring@fontawesomev
              \renewcommand\spx@faIcon{\faIcon}%
          \else
          \ifx\spx@opt@iconpackage\spxstring@fontawesome
              \renewcommand\spx@faIcon[2][]{\faicon{##2}}%
              % The \ifdefined's are a bit silly because we know that
              % fontawesome.sty does not provide it, but perhaps
              % there can be some new release of that package?
              \ifdefined\faicon@lightbulb\else
                   \let\faicon@lightbulb\faLightbulbO
              \fi
              \ifdefined\faicon@radiation\else
                   \let\faicon@radiation\faBolt
              \fi
              \ifdefined\faicon@pen\else
                   \let\faicon@pen\faPencil
              \fi
          % if neither has been required, \spx@faIcon will simply swallow
          % its argument and it is up to user
          % to set the various div.*_title-icon keys appropriately.
          \fi\fi %
         }%
         {%
         \sphinxbuildwarning{badiconpackage}%
         \PackageWarningNoLine{sphinx}{%
            You have set iconpackage=\spx@opt@iconpackage\MessageBreak
            But \spx@opt@iconpackage.sty is not found by LaTeX}
         }%
  \fi
}

\setkeys{sphinx}{
% Icon defaults.
  div.note_title-icon      = \spx@faIcon{info-circle},
  div.hint_title-icon      = \spx@faIcon[regular]{lightbulb},
  div.tip_title-icon       = \spx@faIcon[regular]{lightbulb},
  div.seealso_title-icon   = \spx@faIcon{share},
  div.todo_title-icon      = \spx@faIcon{pen},
  div.important_title-icon = \spx@faIcon{pause-circle},
  div.caution_title-icon   = \spx@faIcon{radiation},
  div.warning_title-icon   = \spx@faIcon{exclamation-triangle},
  div.attention_title-icon = \spx@faIcon{exclamation-triangle},
  div.danger_title-icon    = \spx@faIcon{radiation},
  div.error_title-icon     = \spx@faIcon{times-circle},
% MEMO: the new at 8.1.0 defaults for contents/topic/sidebar directives
% use no icons, they use \sphinxdotitlerow which detects automatically
% whether title-icon key has been set or not.
}

\newif\ifspx@opt@box@addstrut
\expandafter\def\csname KV@sphinx@box_addstrut\endcsname#1{%
    \csname spx@opt@box@addstrut#1\endcsname
}
\expandafter\def\csname KV@sphinx@box_addstrut@default\endcsname{%
    \spx@opt@box@addstruttrue
}

\DeclareDefaultOption{\@unknownoptionerror}
\ProcessKeyvalOptions*
% don't allow use of maxlistdepth via \sphinxsetup.
\DisableKeyvalOption{sphinx}{maxlistdepth}
\DisableKeyvalOption{sphinx}{numfigreset}
\DisableKeyvalOption{sphinx}{nonumfigreset}
\DisableKeyvalOption{sphinx}{mathnumfig}
\DisableKeyvalOption{sphinx}{booktabs}
\DisableKeyvalOption{sphinx}{borderless}
\DisableKeyvalOption{sphinx}{rowcolors}
% FIXME: this is unrelated to an option, move this elsewhere
% To allow hyphenation of first word in narrow contexts; no option,
% customization to be done via 'preamble' key
\newcommand*\sphinxAtStartPar{\leavevmode\nobreak\hskip\z@skip}
% No need for the \hspace{0pt} trick (\hskip\z@skip) with luatex
\ifdefined\directlua\let\sphinxAtStartPar\@empty\fi
% user interface: options can be changed midway in a document!
\newcommand\sphinxsetup{\setkeys{sphinx}}


%% MISCELLANEOUS CONTEXT
%
% flag to be set in a framed environment
% (defined here as currently needed by three sphinxlatex....sty files and
% even if not needed if such files are replaced, the definition does no harm)
\newif\ifspx@inframed
%
% \spx@ifcaptionpackage (defined at begin document)
%     is needed currently in macros from:
%     sphinxlatexliterals.sty (sphinxVerbatim)
%     sphinxlatextables.sty   (for some macros used in the table templates)
%
% \sphinxcaption is mark-up injected by the tabular and tabulary templates
%     it is defined in sphinxlatextables.sty
%
% store the original \caption macro for usage with figures inside longtable
% and tabulary cells. Make sure we get the final \caption in presence of
% caption package, whether the latter was loaded before or after sphinx.
\AtBeginDocument{%
    \let\spx@originalcaption\caption
    \@ifpackageloaded{caption}
      {\let\spx@ifcaptionpackage\@firstoftwo
       \caption@AtBeginDocument*{\let\spx@originalcaption\caption}%
% in presence of caption package, drop our own \sphinxcaption whose aim was to
% ensure same width of caption to all kinds of tables (tabular(y), longtable),
% because caption package has its own width (or margin) option
       \def\sphinxcaption{\caption}%
      }%
      {\let\spx@ifcaptionpackage\@secondoftwo}%
}

%% PASS OPTIONS
%
% pass options to hyperref; it must not have been loaded already
\RequirePackage{sphinxoptionshyperref}
% pass options to geometry; it must not have been loaded already
\RequirePackage{sphinxoptionsgeometry}


%% COLOR (general)
%
% FIXME: these two should be deprecated
%
% FIXME: \normalcolor should be used and \py@NormalColor never defined
\def\py@NormalColor{\color{black}}
% FIXME: \color{TitleColor} should be used directly and \py@TitleColor
% should never get defined.
\def\py@TitleColor{\color{TitleColor}}


%% PACKAGES
%
% as will be indicated below, secondary style files load some more packages
%
% For \text macro (sphinx.util.texescape)
% also for usage of \firstchoice@true(false) in sphinxlatexgraphics.sty
\RequirePackage{amstext}
% It was passed "warn" option from latex template in case it is already loaded
% via some other package before \usepackage{sphinx} in preamble
\RequirePackage{textcomp}
% For the H specifier. Do not \restylefloat{figure}, it breaks Sphinx code
% for allowing figures in tables.
\RequirePackage{float}
% For floating figures in the text. Better to load after float.
\RequirePackage{wrapfig}
% Provides \captionof, used once by latex writer (\captionof{figure})
\RequirePackage{capt-of}
% Support hlist directive
\RequirePackage{multicol}


%% GRAPHICS
%
% It will always be needed, so let's load it here
\RequirePackage{graphicx}
\RequirePackage{sphinxlatexgraphics}


%% FRAMED ENVIRONMENTS
%
% \sphinxbox added at 6.2.0, its definition is in sphinxpackageboxes.
%
% Alias all \sphinxsetup "box_" keys to become \sphinxboxsetup no-prefix keys
\@tfor\x:={border-width}%
          {border-top-width}{border-right-width}{border-bottom-width}{border-left-width}%
          {box-decoration-break}% This one is actually useless, as \sphinxbox
          % creates an unbreakable horizontal box, not a breakable vertical
          % box.  And as is well-known it is very complicated (not to say
          % impossible) to create in LaTeX breakable horizontal boxes.  No
          % package offers them.  See the complications for the support of
          % verbatimforcewraps in sphinxlatexliterals.sty or see the source
          % code of the soul or soulutf8 packages.
          {padding}%
          {padding-top}{padding-right}{padding-bottom}{padding-left}%
          {border-radius}%
          {border-top-left-radius}{border-top-right-radius}%
          {border-bottom-right-radius}{border-bottom-left-radius}%
          {box-shadow}%
          {border-TeXcolor}{background-TeXcolor}{box-shadow-TeXcolor}{TeXcolor}%
          {TeXextras}{addstrut}{addstrut@default}%
\do{\expandafter\let\csname KV@sphinxbox@\x\expandafter\endcsname
                    \csname KV@sphinx@box_\x\endcsname}
% Let \sphinxboxsetup also prepare a "reset", which will be used by nested
% boxes; currently and by laziness this is implemented simply by accumulating
% all passed options inside some storage, in the order they were given, rather
% than saving the box would-be parameters.  Advantage is that this will not
% have to be modified if additional keys are added in future (e.g. for
% elliptic corners).  Storing obeys TeX groups.  (these details would be
% relevant only for some genuine independent LaTeX package and manual user
% authored mark-up, not Sphinx auto mark-up).
\newcommand\sphinxboxsetup[1]{%
    \setkeys{sphinxbox}{#1}%
    \expandafter\def\expandafter\spx@boxes@sphinxbox@defaults\expandafter
       {\spx@boxes@sphinxbox@defaults,#1}%
}
\def\spx@boxes@sphinxbox@reset{%
  \begingroup\def\x{\endgroup\setkeys{sphinxbox}}%
  \expandafter\x\expandafter{\spx@boxes@sphinxbox@defaults}%
}
% Some of these defaults got already set.  But we now list them all explicitly
% for a complete initial configuration of reset storage.
% At 7.4.0, \fboxrule and \fboxsep replaced by 0.4pt and 3pt which are anyhow
% the defaults for these LaTeX dimensions.
\let\spx@boxes@sphinxbox@defaults\@gobble
\sphinxboxsetup{%
                border-width=0.4pt,
                padding=3pt,
                border-radius=0.4pt,
                box-shadow=none,
% MEMO: as xcolor is loaded, \spx@defineorletcolor has a "\colorlet" branch
% which makes this syntax acceptable and avoids duplicating here the values.
                border-TeXcolor=VerbatimBorderColor,
                background-TeXcolor=VerbatimColor,
% 7.4.0 modified the color of the shadow (anyhow box-shadow is set above to none
% so no shadow is drawn), to be as the new shadow colour of topic boxes.
                box-shadow-TeXcolor={RGB}{108,108,108},
                TeXextras={},
                addstrut=false,
               }%
\RequirePackage{sphinxpackageboxes}
\RequirePackage{sphinxlatexadmonitions}
\RequirePackage{sphinxlatexliterals}
\RequirePackage{sphinxlatexshadowbox}


%% CONTAINERS
%
\RequirePackage{sphinxlatexcontainers}


%% PYGMENTS
% stylesheet for highlighting with pygments
\RequirePackage{sphinxhighlight}


%% TABLES
%
\RequirePackage{sphinxlatextables}


%% NUMBERING OF FIGURES, TABLES, AND LITERAL BLOCKS
%
\RequirePackage{sphinxlatexnumfig}


%% LISTS
%
\RequirePackage{sphinxlatexlists}


%% FOOTNOTES
%
% Support scopes for footnote numbering
% This is currently stepped at each input file
\newcounter{sphinxscope}
\newcommand{\sphinxstepscope}{\stepcounter{sphinxscope}}
% We ensure \thesphinxscope expands to digits tokens, independently of language
\renewcommand{\thesphinxscope}{\number\value{sphinxscope}}
\newcommand\sphinxthefootnotemark[2]{%
   % this is used to make reference to an explicitly numbered footnote not on same page
   % #1=label of footnote text, #2=page number where footnote text was printed
   \ifdefined\pagename
      \pagename\space#2, % <- space
    \else
      p. #2, % <- space
   \fi #1% no space
}
% support large numbered footnotes in minipage; but this is now obsolete
% from systematic use of savenotes environment around minipages
\def\thempfootnote{\arabic{mpfootnote}}
% This package is needed to support hyperlinked footnotes in tables and
% framed contents, and to allow code-blocks in footnotes.
\RequirePackage{sphinxpackagefootnote}


%% INDEX, BIBLIOGRAPHY, APPENDIX, TABLE OF CONTENTS
%
\RequirePackage{sphinxlatexindbibtoc}


%% STYLING
%
\RequirePackage{sphinxlatexstylepage}
\RequirePackage{sphinxlatexstyleheadings}
\RequirePackage{sphinxlatexstyletext}


%% MODULE RELEASE DATA AND OBJECT DESCRIPTIONS
%
\RequirePackage{sphinxlatexobjects}


% FIXME: this line should be dropped, as "9" is default anyhow.
\ifdefined\pdfcompresslevel\pdfcompresslevel = 9 \fi


\endinput