% \iffalse meta-comment
%
% File: tamu-talk.dtx Copyright (C) 2026 Wyatt Smith
%
% It may be distributed and/or modified under the conditions of the
% LaTeX Project Public License (LPPL), either version 1.3c of this
% license or (at your option) any later version.  The latest version
% of this license is in the file
%
%    https://www.latex-project.org/lppl.txt
%
% This work has the LPPL maintenance status "maintained".
% The Current Maintainer of this work is Wyatt Smith (216wsmith@gmail.com).
%
% This file is part of the "tamu-talk bundle" (The Work in LPPL)
% and all files in that bundle must be distributed together.
%
% -----------------------------------------------------------------------
%
% The development version of the bundle can be found at
%
%    https://github.com/wsmith-sch/tamu-talk
%
% -----------------------------------------------------------------------
%
%<*driver>
\documentclass{l3doc}
\begin{document}
  \DocInput{\jobname.dtx}
\end{document}
%</driver>
% \fi
%
% \title{The \pkg{tamu-talk} package: code}
% \author{Wyatt Smith\thanks{E-mail: \href{mailto:216wsmith@gmail.com}{216wsmith@gmail.com}}}
% \date{Released 2026-10-24 (v0.1.0)}
%
% \maketitle
%
% \begin{documentation}
%
% \pkg{tamu-talk} is an independently maintained Texas A\&M theme for the
% \pkg{ltx-talk} class. This document is its code. For how to use it, see
% the user guide, \texttt{tamu-talk-doc.pdf} (\texttt{texdoc tamu-talk}).
% The code is split into smaller packages, which \pkg{tamu-talk} loads in
% order.
%
% \end{documentation}
%
% \begin{implementation}
%
% \section{\pkg{tamu-talk}: Main package}
%
%    \begin{macrocode}
%<*package>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk}
  {2026-10-24}
  {0.1.0}
  {A TAMU theme for ltx-talk}

\RequirePackage {tamu-talk-compat}
\RequirePackage {tamu-talk-colors}
\RequirePackage {tamu-talk-boxes}
\RequirePackage {tamu-talk-titlepage}
\RequirePackage {tamu-talk-header}
\RequirePackage {tamu-talk-footer}
\RequirePackage {tamu-talk-options}
%    \end{macrocode}
%
% Apply options given when the package is loaded.
%
%    \begin{macrocode}
\ProcessKeyOptions [tamu-talk]
%</package>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-compat}: Class and version checks}
%
%    \begin{macrocode}
%<*compat>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-compat}
  {2026-10-24}
  {0.1.0}
  {ltx-talk version guard for tamu-talk}
%    \end{macrocode}
%
% Stop with a clear error unless the class is \pkg{ltx-talk}, and recent
% enough.
%
%    \begin{macrocode}
\msg_new:nnnn {tamu-talk} {wrong-class}
  { The~'tamu-talk'~package~requires~the~'ltx-talk'~class. }
  {
    Load~the~class~first:~\iow_char:N\\documentclass{ltx-talk}.~
    For~Beamer~presentations,~try~the~'beamerthemetamu'~theme~instead.
  }

\IfClassLoadedTF {ltx-talk}
  { }
  { \msg_fatal:nn {tamu-talk} {wrong-class} }

\msg_new:nnnn {tamu-talk} {ltx-talk-too-old}
  { tamu-talk~requires~ltx-talk~2026-09-10~or~later. }
  {
    tamu-talk~was~developed~against~ltx-talk~2026-09-10~and~has~not~
    been~checked~against~older~releases.~Update~ltx-talk,~e.g.~with~
    'tlmgr~update~ltx-talk'.
  }

\IfClassAtLeastTF {ltx-talk} {2026-09-10}
  { }
  { \msg_error:nn {tamu-talk} {ltx-talk-too-old} }
%</compat>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-colors}: Colors}
%
%    \begin{macrocode}
%<*colors>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-colors}
  {2026-10-24}
  {0.1.0}
  {TAMU brand colors for tamu-talk}

\DeclareColor {TAMUMaroon}    [HTML] {500000}
\DeclareColor {TAMUNearBlack} [HTML] {202020}
\DeclareColor {TAMUDarkGray}  [HTML] {3E3E3E}
\DeclareColor {TAMUGray}      [HTML] {707070}
\DeclareColor {TAMULightGray} [HTML] {D1D1D1}
\DeclareColor {TAMUTan}       [HTML] {D6D3C4}
%    \end{macrocode}
%
% Off-brand accent colors, meant to pair with \texttt{TAMUMaroon}.
%
%    \begin{macrocode}
\DeclareColor {forest} [HTML] {2F4F3E}
\DeclareColor {slate} [HTML] {3B5875}

\DeclareColor {structure} {TAMUMaroon}
%</colors>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-boxes}: Boxes}
%
% Just a few named \pkg{tcolorbox} environments that look good on slides and
% use our color palette.
%
%    \begin{macrocode}
%<*boxes>
%<@@=tamu_talk>
\ProvidesPackage{tamu-talk-boxes}[2026-10-24 v0.1.0 tcolorbox environments for tamu-talk]

\RequirePackage{tcolorbox}
\tcbuselibrary{skins, breakable}

\newtcolorbox{headerbox}[1]{
  enhanced,
  colback      = TAMUTan!15,
  colframe     = TAMUMaroon,
  coltitle     = white,
  colbacktitle = TAMUMaroon,
  fonttitle    = \bfseries,
  arc          = 0pt,
  boxrule      = 1pt,
  title        = {#1},
}

\tcbset{
  tamu-lasso/maroon/.style = { colframe = TAMUMaroon,    coltitle = TAMUMaroon } ,
  tamu-lasso/black/.style  = { colframe = TAMUNearBlack, coltitle = TAMUNearBlack } ,
}

\newtcolorbox{lasso}[2][maroon]{
  skin         = enhanced jigsaw,
  colback      = white,
  colbacktitle = white,
  boxrule      = 0.5mm,
  arc          = 0mm,
  tamu-lasso/#1,
  attach boxed title to top left = {xshift=4mm, yshift=-2.75mm},
  boxed title style = {boxrule=0.4pt},
  title        = {\textbf{#2}},
}
%    \end{macrocode}
%
% Color shortcuts for \texttt{sidebar}.
%
%    \begin{macrocode}
\tcbset{
  forest/.style = { colback = forest!15, borderline west = {3pt}{0pt}{forest} } ,
  slate/.style  = { colback = slate!15,  borderline west = {3pt}{0pt}{slate}  } ,
}

\newtcolorbox{sidebar}[1][]{
  enhanced,
  sharp corners,
  boxrule = 0pt,
  frame hidden,
  colback = TAMUTan!20,
  borderline west = {3pt}{0pt}{TAMUMaroon},
  left = 10pt, right = 8pt, top = 6pt, bottom = 6pt,
  #1,
}

\newtcolorbox{elevate}[1][]{
  enhanced,
  colback  = white,
  colframe = TAMUMaroon,
  arc      = 2mm,
  boxrule  = .5pt,
  drop shadow,
  IfEmptyTF = {#1}
    { }
    {
      title        = {#1},
      colbacktitle = TAMUMaroon,
      coltitle     = white,
      fonttitle    = \bfseries,
    },
}

\newtcolorbox{outline}[1][.75pt]{
  enhanced,
  colback  = white,
  colframe = TAMUMaroon,
  boxrule  = #1,
  arc      = 0pt,
}
%</boxes>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-titlepage}: Title page}
%
%    \begin{macrocode}
%<*titlepage>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-titlepage}
  {2026-10-24}
  {0.1.0}
  {Title page styling for tamu-talk}

\RequirePackage {graphicx}
\RequirePackage {tcolorbox}

\bool_new:N \g_tamu_talk_title_bold_bool

\cs_new_protected:Npn \__tamu_talk_title_font:
  {
    \Large
    \bool_if:NT \g_tamu_talk_title_bold_bool { \bfseries }
  }

\cs_new_protected:Npn \__tamu_talk_titlepage_set_size:N #1
  {
    \fontsize
      { \dim_use:N #1 }
      { \dim_eval:n { 1.2 #1 } }
    \selectfont
  }

\cs_new_protected:Npn \__tamu_talk_titlepage_title_font:
  {
    \__tamu_talk_titlepage_set_size:N \l_tamu_talk_titlepage_title_size_dim
    \bool_if:NT \g_tamu_talk_title_bold_bool { \bfseries }
  }

\cs_new_protected:Npn \__tamu_talk_titlepage_subtitle_font:
  { \__tamu_talk_titlepage_set_size:N \l_tamu_talk_titlepage_subtitle_size_dim }

\bool_new:N \g_tamu_talk_title_box_bool
\str_new:N  \g_tamu_talk_title_logo_str
\tl_new:N   \g_tamu_talk_logo_file_tl
\tl_new:N   \l__tamu_talk_logo_path_tl
\bool_new:N \l__tamu_talk_titlepage_logo_bool
\box_new:N  \l__tamu_talk_titlepage_logo_box
\box_new:N  \l__tamu_talk_titlepage_text_box
\box_new:N  \l__tamu_talk_titlepage_tail_box
%    \end{macrocode}
%
% \cs{institute} is optional, so make sure \cs{@institute} exists.
%
%    \begin{macrocode}
\tl_if_exist:NF \@institute { \tl_gclear:N \@institute }
%    \end{macrocode}
%
% Make sure neither the banner nor the page counter shows up on the
% title page.
%
%    \begin{macrocode}
\cs_new_nopar:Npn \ps@tamu
  {
    \cs_set_nopar:Npn \@oddhead { \hfil }
    \cs_set_nopar:Npn \@oddfoot { }
    \cs_set_eq:NN \@evenhead \@oddhead
    \cs_set_eq:NN \@evenfoot \@oddfoot
  }
%    \end{macrocode}
%
% \subsection{Logo}
%
% The Texas A\&M logo is trademarked and not distributed with
% \pkg{tamu-talk}. Look for the file given by \texttt{logo-file}, as is
% or with a common extension, and leave \cs{l__tamu_talk_logo_path_tl}
% empty if not found.
%
%    \begin{macrocode}
\msg_new:nnn {tamu-talk} {logo-missing}
  { Logo~file~'#1'~not~found;~see~'texdoc~tamu-talk'. }

\cs_new_protected:Npn \__tamu_talk_logo_find:
  {
    \tl_clear:N \l__tamu_talk_logo_path_tl
    \tl_map_inline:nn { {} {.pdf} {.png} {.jpg} }
      {
        \file_if_exist:nT { \g_tamu_talk_logo_file_tl ##1 }
          {
            \tl_set:Ne \l__tamu_talk_logo_path_tl
              { \g_tamu_talk_logo_file_tl ##1 }
            \tl_map_break:
          }
      }
  }

\cs_new_protected:Npn \__tamu_talk_logo_include:n #1
  {
    % marking as an artifact seems appropriate here
    \includegraphics
      [
        artifact, pagebox = artbox,
        width = \l_tamu_talk_titlepage_logo_width_dim
      ]
      {#1}
  }
\cs_generate_variant:Nn \__tamu_talk_logo_include:n { V }
%    \end{macrocode}
%
% Placeholder: a light gray box roughly the shape of the logo, with a
% note pointing at the docs.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_logo_placeholder_line:n #1
  {
    \hbox_to_wd:nn { \l_tamu_talk_titlepage_logo_width_dim }
      { \hss #1 \hss }
  }
\cs_new_protected:Npn \__tamu_talk_logo_placeholder:
  {
    \hbox_overlap_right:n
      {
        \color_select:n { TAMULightGray }
        \rule
          { \l_tamu_talk_titlepage_logo_width_dim }
          { \dim_eval:n { 0.8 \l_tamu_talk_titlepage_logo_width_dim } }
      }
    \vbox_to_ht:nn
      { \dim_eval:n { 0.8 \l_tamu_talk_titlepage_logo_width_dim } }
      {
        \vss
        \color_select:n { TAMUDarkGray }
        \scriptsize
        \__tamu_talk_logo_placeholder_line:n { Logo~file~not~found. }
        \__tamu_talk_logo_placeholder_line:n
          { See~\texttt{texdoc~tamu-talk}. }
        \vss
      }
  }
%    \end{macrocode}
%
% Decide whether to show a logo, and fill the logo box.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_logo_setup:
  {
    \__tamu_talk_logo_find:
    \str_case:VnF \g_tamu_talk_title_logo_str
      {
        { auto }
          {
            \tl_if_empty:NTF \l__tamu_talk_logo_path_tl
              { \bool_set_false:N \l__tamu_talk_titlepage_logo_bool }
              { \bool_set_true:N  \l__tamu_talk_titlepage_logo_bool }
          }
        { true }
          {
            \bool_set_true:N \l__tamu_talk_titlepage_logo_bool
            \tl_if_empty:NT \l__tamu_talk_logo_path_tl
              {
                \msg_warning:nnV {tamu-talk} {logo-missing}
                  \g_tamu_talk_logo_file_tl
              }
          }
      }
      { \bool_set_false:N \l__tamu_talk_titlepage_logo_bool }
    \bool_if:NT \l__tamu_talk_titlepage_logo_bool
      {
        \hbox_set:Nn \l__tamu_talk_titlepage_logo_box
          {
            \tl_if_empty:NTF \l__tamu_talk_logo_path_tl
              { \__tamu_talk_logo_placeholder: }
              { \__tamu_talk_logo_include:V \l__tamu_talk_logo_path_tl }
          }
      }
  }
%    \end{macrocode}
%
% \subsection{Title block}
%
% Title (boxed or not), subtitle, author, institute, date.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_titlepage_text:
  {
    \centering
    \begin{center}
      \bool_if:NTF \g_tamu_talk_title_box_bool
        {
          \begin{tcolorbox}
            [
              enhanced ,
              colback = TAMUMaroon ,
              colframe = TAMUMaroon ,
              coltext = white ,
              arc = 3mm ,
              boxsep = 0pt ,
              left = 8pt , right = 8pt , top = 8pt , bottom = 8pt ,
              halign = center ,
            ]
            \tag_struct_begin:n { tag = Title }
            {\__tamu_talk_titlepage_title_font: \@title \par}
            \tag_struct_end:
            \tl_if_empty:NF \@subtitle
              { \vskip .25em {\__tamu_talk_titlepage_subtitle_font: \@subtitle \par} }
          \end{tcolorbox}
        }
        {
          \tag_struct_begin:n { tag = Title }
          {\color{TAMUMaroon} \__tamu_talk_titlepage_title_font: \@title \par}
          \tag_struct_end:
          \tl_if_empty:NF \@subtitle
            { \vskip .25em {\__tamu_talk_titlepage_subtitle_font: \color{TAMUMaroon!70} \@subtitle \par} }
        }
    \end{center}

    {\@author \par}
    {
      \scriptsize
      \tl_if_empty:NTF \@institute
        { Texas~A\&M~University,~College~Station~TX }
        { \@institute }
      \par
    }
    \tl_if_empty:NF \@date
      { {\scriptsize \@date \par} }
  }
%    \end{macrocode}
%
% \subsection{Layout}
%
% Distance from the top of the slide to the top of the logo, which is
% centered \texttt{logo-height} above the bottom of the page.
%
%    \begin{macrocode}
\cs_new:Npn \__tamu_talk_titlepage_logo_top:
  {
    \paperheight - \l_tamu_talk_titlepage_logo_height_dim
    - ( 1in + \voffset + \topmargin + \headheight + \headsep )
    - \topskip
    - \box_ht_plus_dp:N \l__tamu_talk_titlepage_logo_box / 2
  }
%    \end{macrocode}
%
% FIXME TODO: this code does not seem robust.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_titlepage_body:n #1
  {
    \vfill
    \group_begin:
    \__tamu_talk_titlepage_text:
    \vskip .5em
    \begin{center} #1 \end{center}
    \group_end:
    \vfill
  }

\prg_new_protected_conditional:Npnn \__tamu_talk_titlepage_if_crowded: { TF }
  {
    \tag_suspend:n { tamu-talk }
    \vbox_set:Nn \l__tamu_talk_titlepage_text_box
      { \__tamu_talk_titlepage_text: }
    \vbox_set:Nn \l__tamu_talk_titlepage_tail_box
      {
        \vskip .5em
        \begin{center}
          \phantom { \box_use:N \l__tamu_talk_titlepage_logo_box }
        \end{center}
      }
    \tag_resume:n { tamu-talk }
    \dim_compare:nNnTF
      {
        ( \textheight
          + \box_ht_plus_dp:N \l__tamu_talk_titlepage_text_box
          - \box_ht_plus_dp:N \l__tamu_talk_titlepage_tail_box ) / 2
        + .5em
      }
      > { \__tamu_talk_titlepage_logo_top: }
      { \prg_return_true: }
      { \prg_return_false: }
  }

\DeclareTemplateInterface {titlepage} {tamu} {0}
  {
    framestyle    : tokenlist = tamu ,
    title-size    : length    = 18pt ,
    subtitle-size : length    = 11pt ,
    logo-width    : length    = .25\textwidth ,
    logo-height   : length    = 28mm ,
  }
\DeclareTemplateCode {titlepage} {tamu} {0}
  {
    framestyle    = \l_tamu_talk_titlepage_framestyle_tl ,
    title-size    = \l_tamu_talk_titlepage_title_size_dim ,
    subtitle-size = \l_tamu_talk_titlepage_subtitle_size_dim ,
    logo-width    = \l_tamu_talk_titlepage_logo_width_dim ,
    logo-height   = \l_tamu_talk_titlepage_logo_height_dim ,
  }
  {
    \tl_if_empty:NF \l_tamu_talk_titlepage_framestyle_tl
      { \exp_args:NV \thispagestyle \l_tamu_talk_titlepage_framestyle_tl }
    \__tamu_talk_logo_setup:
    \bool_if:NTF \l__tamu_talk_titlepage_logo_bool
      {
        \__tamu_talk_titlepage_if_crowded:TF
          {
            % long title: the logo follows the text instead
            \__tamu_talk_titlepage_body:n
              {
                \mode_leave_vertical:
                \box_use:N \l__tamu_talk_titlepage_logo_box
              }
          }
          {
            % logo at its fixed spot; a phantom holds its space under the text
            \vbox_to_zero:n
              {
                \skip_vertical:n { \__tamu_talk_titlepage_logo_top: }
                \hbox_to_wd:nn { \textwidth }
                  { \hss \box_use:N \l__tamu_talk_titlepage_logo_box \hss }
                \vss
              }
            \__tamu_talk_titlepage_body:n
              { \phantom { \box_use:N \l__tamu_talk_titlepage_logo_box } }
          }
      }
      {
        \vfill
        \group_begin:
        \__tamu_talk_titlepage_text:
        \group_end:
        \vfill
      }
  }
%    \end{macrocode}
%
% Adapted from \pkg{ltx-talk}'s \cs{maketitle}: outside a frame, make one.
%
%    \begin{macrocode}
\ExpandArgs { Nne } \RenewDocumentCommand \maketitle { O {} }
  {
    \exp_not:N \bool_if:NTF \exp_not:N \l__talk_frame_bool
      { \exp_not:N \UseTemplate {titlepage} {tamu} { framestyle = tamu , #1 } }
      {
        \exp_not:N \begin {frame}
          \bool_if:NT \l__talk_frame_title_bool { { } }
          \exp_not:N \UseTemplate {titlepage} {tamu} { framestyle = tamu , #1 }
        \exp_not:N \end {frame}
      }
  }
%</titlepage>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-header}: Header}
%
%    \begin{macrocode}
%<*header>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-header}
  {2026-10-24}
  {0.1.0}
  {Header styling for tamu-talk}

\DeclareTemplateInterface { frametitle } { tamu } { 1 }
  {
    after-vspace  : skip = \bigskipamount ,
    before-vspace : skip = 0em ,
    color         : tokenlist = ,
    font          : tokenlist = \Large \bfseries ,
    vshift        : length = 0pt ,
  }
\DeclareTemplateCode { frametitle } { tamu } { 1 }
  {
    after-vspace  = \l_tamu_talk_frametitle_after_skip ,
    before-vspace = \l_tamu_talk_frametitle_before_skip ,
    color         = \l_tamu_talk_frametitle_color_tl ,
    font          = \l_tamu_talk_frametitle_font_tl ,
    vshift        = \l_tamu_talk_frametitle_vshift_dim ,
  }
  {
    \noindent
    \group_begin:
    \tl_if_empty:NF \l_tamu_talk_frametitle_color_tl
      { \color_select:V \l_tamu_talk_frametitle_color_tl }
    \l_tamu_talk_frametitle_font_tl
    \tl_if_blank:nF {#1}
      {
        \raise \l_tamu_talk_frametitle_vshift_dim
        \hbox { \__talk_frame_title:n {#1} }
      }
    \par
    \group_end:
  }
\DeclareInstance { frametitle } { header } { tamu } { }

\EditInstance {frametitle} {header}
  {
    font   = \__tamu_talk_title_font: ,
    vshift = 0pt ,
  }
%    \end{macrocode}
%
% Pull the title text to the left.
%
%    \begin{macrocode}
\EditInstance {header} {std} { left-hspace = 6mm }
%</header>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-footer}: Footer}
%
%    \begin{macrocode}
%<*footer>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-footer}
  {2026-10-24}
  {0.1.0}
  {Footer styling for tamu-talk}

\cs_new:Npn \@spacer { }
\DeclareInstance {footer-element} {spacer} {talk} { }

\str_new:N \g_tamu_talk_page_numbers_str
%    \end{macrocode}
%
% ^^A TODO: letter the appendix sections (Appendix A, Appendix B, ...)
%
%    \begin{macrocode}
\cs_new:Npn \@framecount
  {
    \str_if_eq:VnTF \g_tamu_talk_page_numbers_str { total }
      { \theframe \, / \, \@frames }
      {
        \int_compare:nNnTF { \c@appendixframe } > 0
          { A \theappendixframe }
          { \theframe }
      }
  }
\DeclareInstance {footer-element} {framecount} {talk} { }
%    \end{macrocode}
%
% Use lining figures for the slide numbers, if the font needs them.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_lining_numbers:
  {
    \cs_if_exist:NT \addfontfeature
      { \addfontfeature { Numbers = Lining } }
  }
\EditInstance {footer-element} {framecount}
  { font = \__tamu_talk_lining_numbers: }
%</footer>
%    \end{macrocode}
%
% \section{\pkg{tamu-talk-options}: Options}
%
%    \begin{macrocode}
%<*options>
%<@@=tamu_talk>
\ProvidesExplPackage
  {tamu-talk-options}
  {2026-10-24}
  {0.1.0}
  {Option definitions for tamu-talk}
%    \end{macrocode}
%
% Turn the footer counter on and record which format to typeset.
%
%    \begin{macrocode}
\cs_new_protected:Npn \__tamu_talk_page_numbers_show:n #1
  {
    \str_gset:Nn \g_tamu_talk_page_numbers_str {#1}
    \EditInstance {footer} {std}
      {
        element-order = {spacer, framecount} ,
        separator     = \hfill ,
        right-hspace  = 3mm ,
      }
  }
%    \end{macrocode}
%
% The keys. What each one does is described in the user guide,
% \texttt{tamu-talk-doc.pdf}.
%
%    \begin{macrocode}
\keys_define:nn {tamu-talk}
  {
    page-numbers .choice: ,
    page-numbers / none .code:n =
      {
        \str_gset:Nn \g_tamu_talk_page_numbers_str { none }
        \EditInstance {footer} {std} { element-order = {} }
      } ,
    page-numbers / current  .code:n = { \__tamu_talk_page_numbers_show:n { current } } ,
    page-numbers / total    .code:n = { \__tamu_talk_page_numbers_show:n { total } } ,
    page-numbers .initial:n = total ,

    title-bold .bool_gset:N = \g_tamu_talk_title_bold_bool ,
    title-bold .default:n   = {true} ,
    title-bold .initial:n   = {false} ,

    title-box .bool_gset:N = \g_tamu_talk_title_box_bool ,
    title-box .default:n   = {true} ,
    title-box .initial:n   = {true} ,

    title-logo .choices:nn  = { auto , true , false }
      { \str_gset:Ne \g_tamu_talk_title_logo_str { \l_keys_choice_tl } } ,
    title-logo .default:n   = true ,
    title-logo .initial:n   = auto ,

    logo-file .tl_gset:N    = \g_tamu_talk_logo_file_tl ,
    logo-file .initial:n    = tamu-logo ,

    header-style .choice: ,
    header-style / plain .code:n =
      {
        \EditInstance {header} {std}
          {
            background-color = {} ,
            color            = structure ,
            height           = \Gm@tmargin + \headsep ,
          }
        \EditInstance {frametitle} {header} { vshift = 0pt }
      } ,
    header-style / ribbon .code:n =
      {
        \EditInstance {header} {std}
          {
            background-color = TAMUMaroon ,
            color            = white ,
            height           = 6.65mm ,
          }
        \EditInstance {frametitle} {header} { vshift = 0pt }
      } ,
    header-style / banner .code:n =
      {
        \EditInstance {header} {std}
          {
            background-color = TAMUMaroon ,
            color            = white ,
            height           = \Gm@tmargin + \headsep ,
          }
        \EditInstance {frametitle} {header} { vshift = 1.735mm }
      } ,
    header-style .initial:n = banner ,
  }
%</options>
%    \end{macrocode}
%
% \end{implementation}