cellprops (11jun18)

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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    cellprops
+    Copyright (C) 2018  Julien "_FrnchFrgg_" RIVAUD
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    cellprops  Copyright (C) 2018  Julien "_FrnchFrgg_" RIVAUD
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Master/texmf-dist/doc/latex/cellprops/README.md b/Master/texmf-dist/doc/latex/cellprops/README.md
new file mode 100644
index 00000000000..04259f9eb9c
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/cellprops/README.md
@@ -0,0 +1,12 @@
+The `cellprops` package
+=======================
+
+This package reworks the internals of `tabular`, `array`, and similar
+constructs, and adds a `\cellprops` command accepting CSS-like selectors and
+properties.  It depends on `mdwtab`, `xcolor` and of course `expl3` and
+`xparse`.
+
+You can use most constructs of `mdwtab`, but some too hackish usage might
+alter the function of cellprops.
+
+Look at the PDF documentation to see examples and detailed usage.
diff --git a/Master/texmf-dist/doc/latex/cellprops/cellprops.pdf b/Master/texmf-dist/doc/latex/cellprops/cellprops.pdf
new file mode 100644
index 00000000000..66e7a6ed74e
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/cellprops/cellprops.pdf
diff --git a/Master/texmf-dist/source/latex/cellprops/cellprops.dtx b/Master/texmf-dist/source/latex/cellprops/cellprops.dtx
new file mode 100644
index 00000000000..6786f616db4
--- /dev/null
+++ b/Master/texmf-dist/source/latex/cellprops/cellprops.dtx
@@ -0,0 +1,866 @@
+% \iffalse meta-comment
+% vim: tw=80 spl=en
+%
+%% File: cellprops.dtx (C) Copyright 2016 RIVAUD Julien
+%%
+%% It may be distributed and/or modified under the conditions of the
+%% General Public License (GPL), either version 3 of this
+%% license or (at your option) any later version.
+%
+%<*driver|package>
+% The version of expl3 required is tested as early as possible, as
+% some really old versions do not define \ProvidesExplPackage.
+\NeedsTeXFormat{LaTeX2e}[1995/12/01]
+\RequirePackage{expl3}[2016/01/19]
+\def\ExplFileName{cellprops}
+\def\ExplFileDescription{CSS-like cell and table properties}
+\def\ExplFileDate{2016/04/05}
+\def\ExplFileVersion{1.0}
+%</driver|package>
+%<*driver>
+\documentclass[full]{l3doc}
+\usepackage{cellprops}
+\begin{document}
+  \DocInput{\jobname.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% \title{^^A
+%   The \textsf{\ExplFileName} package\\ \ExplFileDescription^^A
+%   \thanks{This file describes v\ExplFileVersion,
+%     last revised \ExplFileDate.}^^A
+% }
+%
+% \author{^^A
+%  Julien ``\_FrnchFrgg\_'' \textsc{Rivaud}\thanks
+%    {^^A
+%      E-mail:
+%        \href{mailto:frnchfrgg@free.fr}
+%             {frnchfrgg@free.fr}^^A
+%    }^^A
+% }
+%
+% \date{Released \ExplFileDate}
+%
+% \maketitle
+%
+% \begin{documentation}
+%
+%
+%
+% \section{\pkg{\ExplFileName} documentation}
+%
+% This package reworks the internals of \env{tabular}, \env{array}, and similar
+% constructs, and adds a \cs{cellprops} command accepting CSS-like selectors and
+% properties.
+%
+% It depends on \pkg{mdwtab}, \pkg{xcolor} and of course \pkg{expl3} and
+% \pkg{xparse}.
+%
+% \subsection{Example}
+%
+% The code:
+%
+%\begin{verbatim}
+% \[
+%    \cellprops{
+%        td { padding: 1ex; }
+%        td:nth-child(4) { color: red; }
+%        tr:nth-child(2) { color: red; }
+%        tr:nth-child(1) td:nth-child(4) { color: inherit; }
+%        td:nth-child(even) { background-color: black!5!white; }
+%        tr:nth-child(2n+1) { background-color: yellow!30!white; }
+%        tr:nth-child(odd) td:nth-child(even) {
+%            background-color: black!20!yellow!20!white;
+%        }
+%    }
+%    \begin{array}{Tlccc}
+%    \hline
+%    This is text & A_2 & A_3 & A_4 \\
+%    \hline
+%    B1 & This is maths & B_3 & \\
+%    C1 &  C_2  &  X  & Y \\
+%    D1 &  D_2  &  DX & v \\
+%    E &  F  &  \int_a^b f(t) dt & v \\
+%    \hline
+% \end{array}\]
+%\end{verbatim}
+%
+% produces:
+%
+% \[
+%    \cellprops{
+%        td { padding: 1ex; }
+%        td:nth-child(4) { color: red; }
+%        tr:nth-child(2) { color: red; }
+%        tr:nth-child(1) td:nth-child(4) { color: inherit; }
+%        td:nth-child(even) { background-color: black!5!white; }
+%        tr:nth-child(2n+1) { background-color: yellow!30!white; }
+%        tr:nth-child(odd) td:nth-child(even) {
+%            background-color: black!20!yellow!20!white;
+%        }
+%    }
+%    \begin{array}{Tlccc}
+%    \hline
+%    This is text & A_2 & A_3 & A_4 \\
+%    \hline
+%    B1 & This is maths & B_3 & \\
+%    C1 &  C_2  &  X  & Y \\
+%    D1 &  D_2  &  DX & v \\
+%    E &  F  &  \int_a^b f(t) dt & v \\
+%    \hline
+% \end{array}\]
+%
+%
+%
+%
+% \subsection{Usage guide}
+%
+% \def\OR{\string| }
+%
+% \def\bracket#1{\<#1>:}
+% \def\<#1>{{\normalfont<\textsl{#1}>}}
+% \begin{description}[format=\bracket,
+%                   wide,leftmargin=9em,labelwidth=!,labelsep=0pt,
+%                   ]
+%    \item[usage] "'\cellprops{'" [ \<selectors> "'{'" \<properties> "'}'" ]* "'}'"
+%    \item[selectors] \<selector> ["," \<selectors> ]
+%    \item[selector] [\<environment> "' '"] \<element1>
+%    \item[element1]
+%           "'table'" \OR
+%           "'tr'"[\<pseudo-class>] ["' '" \<element2>] \OR
+%           \<element2>
+%    \item[element2] "'td'"[\<pseudo-class>]
+%    \item[pseudo-class] "':nth-child('"\<nth>"')"
+%    \item[nth] \<number> \OR "'odd'" \OR "'even'" \OR \<number>"'n+'"\<number>
+%    \item[properties] [ \<property> "';'" ]*
+%    \item[property]
+%       "'padding: '" \<dimension> [ "' '" \<dimension> ]* \OR \\
+%       "'padding-top: '" \<dimension> \OR \\
+%       "'padding-left: '" \<dimension> \OR \\
+%       "'padding-bottom: '" \<dimension> \OR \\
+%       "'padding-right: '" \<dimension> \OR \\
+%       "'min-height: '" \<dimension> \OR \\
+%       "'min-depth: '" \<dimension> \OR \\
+%       "'min-width: '" \<dimension> \OR \\
+%       "'text-align: '" ( "'left'" \OR "'right'" \OR "'center'" ) \OR \\
+%       "'math-mode: '" ( "'text'" \OR "'math'" \OR "'auto'" ) \OR \\
+%       "'color: '" ( \<xcolor-expression> \OR "'inherit'" ) \OR \\
+%       "'background-color: '" ( \<xcolor-expression> \OR "'transparent'" ) \\
+% \end{description}
+%
+% Most of these properties are straight-forward. Some explanations:
+%
+% Here are the supported column types:
+% \begin{itemize}
+%    \item "n": The most basic cell type, hbox, honoring all properties.
+%    \item "l", "c", and "r": Same as "n" but with forced "text-align".
+%    \item "M"\<coltype>: Same as \<coltype> but enforces "math-mode: math". The
+%        net effect is that "Mc" will create a centered column whose contents are
+%        in non-display math mode.
+%    \item "T"\<coltype>: Same as \<coltype> but enforces "math-mode: text".
+%    \item "p{"\<width>"}", "m"\<width> and "b"\<width>: parbox cell with the
+%        corresponding vertical alignment (\cs{vtop}, \cs{vcenter} or \cs{vbox}).
+%    \item "*{"\<count>"}{"\<coltypes>"}": same as in \pkg{array} or
+%        \pkg{mdwtab}.
+%    \item You can try to use constructs of \pkg{array} or \pkg{mdwtab}, but they
+%        might alter the function of \pkg{cellprops}. Most should be fine though.
+% \end{itemize}
+% The intended usage is to use "n"-type columns and set the properties with CSS,
+% but \LaTeX-like columns in the preamble are often less verbose.
+%
+% Details for some properties:
+%
+% \begin{itemize}
+%    \item "math-mode: auto" means that the cell will be in math mode in
+%        environments \env{array}, \env{matrix}, \dots, and in text mode in
+%        environments like \env{tabular}, \dots
+%    \item "background-color" is only painted on the cell, and "transparent"
+%        actually means "inherit" except that if all values encountered are
+%        "inherit"/"transparent" no background is painted at all. That means that
+%        (currently) you cannot paint a row in some color and rely on
+%        transparency to have it bleed through a cell background.
+%    \item There are no columns in the CSS object model so you have to use
+%        "td:nth-child()" to select a column. Currently, cells spanning several
+%        columns actually increase the child count by the number of column they
+%        span, so that nth-child can still be used to select columns.
+%        This is not consistent with the CSS specification.
+%    \item Currently, only "2n", "2n+1", "3n", "3n+1" and "3n+2" are supported,
+%        without any space, as arguments of "nth-child()" other than a single
+%        number, "odd" or "even" without any space. Supporting others is trivial,
+%        but increase the running time. In a near-future release, I intend to
+%        detect which multiples are actually used and automatically support
+%        those.
+% \end{itemize}
+%
+% \subsection{TODO}
+%
+% Add "border" properties. Add automatic support of ":nth-child(an+b)" for
+% $"a"\ge 4$.
+%
+% \end{documentation}
+%
+% \begin{implementation}
+%
+% \section{\pkg{\ExplFileName} implementation}
+%
+%    \begin{macrocode}
+%<*package>
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+%<@@=cellprops>
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+\ProvidesExplPackage
+  {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
+
+\RequirePackage{xparse}
+\RequirePackage{xcolor}
+%    \end{macrocode}
+% \subsection{Loading and fixing \pkg{mdwtab}}
+%
+%   There is a bug in the command \cs{colpop} of \pkg{mdwtab}: instead of just
+%   popping one name in the stack of column sets currently used, it empties it
+%   completely because one \cs{expandafter} is missing. This is proof that not
+%   many package authors really use this API as recommended by Mark
+%   \textsc{Wooding}\ldots We thus load \pkg{mdwtab} and fix \cs{colpop}.
+%    \begin{macrocode}
+\RequirePackage{mdwtab}
+\cs_set_nopar:Npn \tab@pop #1 { \tl_set:Nx #1 { \tl_tail:N #1 } }
+
+
+%    \end{macrocode}
+%
+% \subsection{Parsing CSS properties}
+%
+%   Properties are parsed once at setting time, by expandable parsers that leave
+%   definitions in the input stream. All these resulting definitions are saved
+%   in a token list that will be expanded when we need the values. The goal is
+%   to have multiple token lists for multiple contexts, yet not to do the full
+%   parsing dance once per cell.
+%
+%   \begin{variable}{\l_@@_property_value_<name>_tl}
+%   \begin{macro}{\@@_generic_setter:nnn}
+%   \begin{macro}{\@@_get_property:n}
+%   \begin{macro}{\@@_get_property:nN}
+%   We first define a generic setter which just uses
+%   \cs{l_@@_property_value_<name>_tl} to store the value of the property. We
+%   define getters, one that leaves the value in the stream, and one saving the
+%   value in a token list.
+%
+%    \begin{macrocode}
+\cs_set:Nn \@@_generic_setter:nnn {
+    \exp_not:N \tl_set:Nn
+    \exp_not:c { l_@@_property_value_#2_tl }
+    {#1 {#3}}
+}
+
+\cs_set_nopar:Nn \@@_get_property:n {
+    \tl_use:c { l_@@_property_value_#1_tl }
+}
+
+\cs_set_protected_nopar:Nn \@@_get_property:nN {
+    \tl_set_eq:Nc #2 { l_@@_property_value_#1_tl }
+}
+%    \end{macrocode}
+%   \end{macro}
+%   \end{macro}
+%   \end{macro}
+%   \end{variable}
+%
+%   \begin{macro}{\@@_property_type_<name>:nn}
+%   \begin{macro}{\@@_define_properties:nn}
+%   The control sequence \cs{_@@_property_type_<name>:nn} holds the setter for
+%   the property \meta{name}. It can be set by the following helper:
+%    \begin{macrocode}
+\cs_set_protected:Nn \@@_define_properties:nn {
+    \clist_map_inline:nn {#2} {
+        \cs_set:cpn { _@@_property_type_##1:nn } {#1}
+    }
+}
+%    \end{macrocode}
+%   \end{macro}
+%   \end{macro}
+%
+%   \begin{macro}{\@@_use_setter:nn}
+%   Sometimes we need to use a setter right away rather than save its action
+%   somewhere. The following helper does that with an x-expansion.
+%    \begin{macrocode}
+\cs_set_protected:Nn \@@_use_setter:nn {
+    \use:x {
+        \use:c {_@@_property_type_#1:nn} {#1} {#2}
+    }
+}
+%    \end{macrocode}
+%   \end{macro}
+%
+%    \begin{macrocode}
+\cs_set_protected:Nn \@@_parse_properties:nn {
+    \tl_if_exist:cF { l_@@_property_group_#1_tl } {
+        \tl_clear:c { l_@@_property_group_#1_tl }
+    }
+    \seq_set_split:Nnn \l_tmpa_seq {;} {#2}
+    \seq_map_inline:Nn \l_tmpa_seq {
+        \tl_if_empty:nF {##1} {
+            \exp_args:NNV \seq_set_split:Nnn \l_tmpb_seq \c_colon_str {##1}
+            \int_compare:nNnTF {\seq_count:N \l_tmpb_seq} = \c_two {
+                \seq_get_left:NN \l_tmpb_seq \l_tmpa_tl
+                \exp_args:NNV \str_set:Nn \l_tmpa_str \l_tmpa_tl
+                \seq_get_right:NN \l_tmpb_seq \l_tmpa_tl
+                \cs_if_exist:cTF { _@@_property_type_\l_tmpa_str :nn } {
+                    \tl_put_right:cx { l_@@_property_group_#1_tl } {
+                        \exp_args:Nc \exp_args:NVV
+                        { _@@_property_type_\l_tmpa_str :nn }
+                        \l_tmpa_str \l_tmpa_tl
+                    }
+                }{
+                % TODO: ERROR-no property with that name
+                }
+            }{
+            % TODO: ERROR-too many : or none at all
+            }
+        }
+    }
+}
+
+\cs_set:Nn \@@_fourdim_setter:nn {
+    \@@_fourdim_setter_aux:w
+        {#1}#2~{\q_no_value}~{\q_no_value}~{\q_no_value}~\q_stop
+}
+\cs_set:Npn \@@_fourdim_setter_aux:w #1#2~#3~#4~#5~#6\q_stop {
+    \@@_generic_setter:nnn \exp_not:n {#1-top} {#2}
+    \quark_if_no_value:nTF {#3} {
+        \@@_generic_setter:nnn \exp_not:n {#1-right} {#2}
+        \@@_generic_setter:nnn \exp_not:n {#1-left}  {#2}
+    }{
+        \@@_generic_setter:nnn \exp_not:n {#1-right} {#3}
+        \quark_if_no_value:nTF {#5} {
+            \@@_generic_setter:nnn \exp_not:n {#1-left} {#3}
+        }{
+            \@@_generic_setter:nnn \exp_not:n {#1-left} {#5}
+        }
+    }
+    \quark_if_no_value:nTF {#4} {
+        \@@_generic_setter:nnn \exp_not:n {#1-bottom} {#2}
+    }{
+        \@@_generic_setter:nnn \exp_not:n {#1-bottom} {#4}
+    }
+}
+
+\tl_const:Nn \c_@@_inherit_color_tl { \q_nil }
+
+\cs_new_nopar:Nn \@@_color_setter:nn {
+    \str_if_eq:nnTF {#2} {inherit} {
+        \@@_generic_setter:nnn \exp_not:n {#1} {\c_@@_inherit_color_tl}
+    }{
+        \str_case_x:nnF { \str_range:nnn {#2} {1} {4} } {
+            {rgb(} {
+                \@@_generic_setter:nnn \use:n {#1} {
+                    \exp_not:n {\color[RGB]} {\str_range:nnn {#2} {5} {-2}}
+                }}
+            {hsl(} {
+                \@@_generic_setter:nnn \use:n {#1} {
+                    \exp_not:n {\color[Hsb]} {\str_range:nnn {#2} {5} {-2}}
+                }}
+        }{
+            \@@_generic_setter:nnn \exp_not:n {#1} {
+                \color{#2}
+            }
+        }
+    }
+}
+\cs_new_nopar:Nn \@@_bgcolor_setter:nn {
+    \str_if_eq:nnTF {#2} {transparent} {
+        \@@_color_setter:nn {#1} {inherit}
+    }{
+        \@@_color_setter:nn {#1} {#2}
+    }
+}
+
+
+\@@_define_properties:nn {
+    \@@_generic_setter:nnn \exp_not:n
+}{
+    padding-top,
+    padding-right,
+    padding-bottom,
+    padding-left,
+    min-height,
+    min-depth,
+    min-width,
+}
+
+\@@_define_properties:nn {
+    \@@_fourdim_setter:nn
+}{
+    padding
+}
+
+\@@_define_properties:nn {
+    \@@_generic_setter:nnn \tl_to_str:n
+}{
+    text-align,
+    math-mode,
+}
+
+\@@_define_properties:nn {
+    \@@_color_setter:nn
+}{
+    color,
+}
+
+\@@_define_properties:nn {
+    \@@_bgcolor_setter:nn
+}{
+    background-color,
+}
+
+
+% TODO: properties for array
+\NewDocumentCommand \cellprops { m } {
+    \@@_parse_css:n {#1}
+}
+
+\cs_new_protected:Nn \@@_parse_css:n {
+    \@@_parse_css:w #1 \q_mark {\q_nil} \q_stop
+}
+\NewDocumentCommand \@@_parse_css:w { lmu{\q_stop} } {
+    \quark_if_nil:nF {#2} {
+        \clist_map_inline:nn {#1} {
+            \@@_parse_properties:nn {##1} {#2}
+        }
+        \@@_parse_css:w #3 \q_stop
+    }
+}
+
+\cs_set_protected:Nn \@@_recall_properties:n {
+    \tl_if_exist:cT { l_@@_property_group_#1_tl } {
+        \tl_use:c { l_@@_property_group_#1_tl }
+    }
+    \clist_map_inline:nn { \@currenvir } {
+        \tl_if_exist:cT { l_@@_property_group_##1~#1_tl } {
+            \tl_use:c { l_@@_property_group_##1~#1_tl }
+        }
+    }
+}
+
+\dim_new:N \l_@@_colsep_dim
+\ExplSyntaxOff
+\cellprops{
+    td {
+        padding: 0pt \csname l_@@_colsep_dim\endcsname;
+        min-height: 0pt;
+        min-depth: 0pt;
+        min-width: 0pt;
+        text-align: left;
+        math-mode: auto;
+        color: inherit;
+        background-color: transparent;
+    }
+    tr {
+        color: inherit;
+        background-color: transparent;
+    }
+    table {
+        padding: 0pt; % No change at load time
+        color: inherit;
+        background-color: transparent;
+    }
+}
+\ExplSyntaxOn
+
+\int_new:N \g_@@_row_int
+\int_new:N \g_@@_col_int
+\bool_new:N \g_@@_inrow_bool
+\bool_gset_false:N \g_@@_inrow_bool
+
+\box_new:N \l_@@_cell_box
+\skip_new:N \l_@@_left_skip
+\skip_new:N \l_@@_right_skip
+\dim_new:N \g_@@_ht_dim
+\dim_new:N \g_@@_dp_dim
+
+\tl_new:N \l_@@_restore_tl
+
+\dim_new:N \l_@@_tablepadding_top_dim
+\dim_new:N \l_@@_tablepadding_bottom_dim
+\tl_new:N  \l_@@_color_tl
+\tl_new:N  \l_@@_bgcolor_tl
+
+% To count rows and columns
+\cs_set_eq:NN \@@_orig_array: \@array
+\cs_set_protected_nopar:Npn \@array[#1]#2 {
+    \tl_set:Nx \l_@@_restore_tl {
+        \bool_if:NTF \g_@@_inrow_bool {
+            \exp_not:n {\bool_gset_true:N \g_@@_inrow_bool}
+        }{
+            \exp_not:n {\bool_gset_false:N \g_@@_inrow_bool}
+        }
+        \exp_not:n { \int_gset:Nn \g_@@_row_int }
+            { \int_use:N \g_@@_row_int }
+        \exp_not:n { \int_gset:Nn \g_@@_col_int }
+            { \int_use:N \g_@@_col_int }
+        \exp_not:n { \dim_gset:Nn \g_@@_ht_dim }
+            { \dim_use:N \g_@@_ht_dim }
+        \exp_not:n { \dim_gset:Nn \g_@@_dp_dim }
+            { \dim_use:N \g_@@_dp_dim }
+    }
+    \int_gzero:N \g_@@_row_int
+    \bool_gset_false:N \g_@@_inrow_bool
+    \cs_set_eq:NN \@@_orig_tab@initread: \tab@initread
+    \cs_set_protected_nopar:Npn \tab@initread {
+        \cs_set_eq:NN \tab@initread \@@_orig_tab@initread:
+        \tab@initread
+        \tl_put_left:Nn \tab@tabtext {\int_gincr:N \g_@@_col_int}
+    }
+% \end{macrocode}
+% Zero \cs{col@sep} but remember its value for the default padding.
+% \begin{macrocode}
+    \dim_set_eq:NN \l_@@_colsep_dim \col@sep
+    \dim_zero:N \col@sep
+% \end{macrocode}
+% Also ignore \cs{*extrasep} dimensions that are not part of cellprop
+% interface and should be replaced by CSS equivalents.
+% \begin{macrocode}
+    \dim_zero:N \tab@extrasep
+    \group_begin:
+        \@@_recall_properties:n {table}
+        \dim_gset:Nn \g_tmpa_dim { \@@_get_property:n {padding-top} }
+        \dim_gset:Nn \g_tmpb_dim { \@@_get_property:n {padding-bottom} }
+        \@@_update_colors:
+        \tl_gset_eq:NN \g_tmpa_tl \l_@@_color_tl
+        \tl_gset_eq:NN \g_tmpb_tl \l_@@_bgcolor_tl
+    \group_end:
+    \dim_set_eq:NN \l_@@_tablepadding_top_dim \g_tmpa_dim
+    \dim_set_eq:NN \l_@@_tablepadding_bottom_dim \g_tmpb_dim
+    \tl_set_eq:NN \l_@@_color_tl \g_tmpa_tl
+    \tl_set_eq:NN \l_@@_bgcolor_tl \g_tmpb_tl
+    \@@_recall_properties:n {tr}
+    \@@_orig_array:[{#1}]{#2}
+    \hlx{s[\l_@@_tablepadding_top_dim]}
+}
+
+% \end{macrocode}
+% The color inheritance is handled with \cs{l_@@_inherit_color_tl},
+% \cs{l_@@_color_tl} and \cs{l_@@_bgcolor_tl}. The role of
+% \cs{@@_update_color:Nn} is to set the inherit fallback to the already
+% existing value of \verb|#1| then set \verb|#1| to the CSS value, which can be
+% the inherit variable.
+% \begin{macrocode}
+
+\cs_new_protected_nopar:Nn \@@_update_color:Nn {
+    \@@_get_property:nN {#2} \l_tmpc_tl
+    \exp_args:NV \tl_if_eq:NNF \l_tmpc_tl \c_@@_inherit_color_tl {
+        \tl_set_eq:NN #1 \l_tmpc_tl
+    }
+}
+
+\cs_set_protected_nopar:Nn \@@_update_colors: {
+    \@@_update_color:Nn \l_@@_color_tl {color}
+    \@@_update_color:Nn \l_@@_bgcolor_tl {background-color}
+}
+
+\cs_set_eq:NN \@@_orig_endarray: \endarray
+\cs_set_nopar:Npn \endarray {
+    \crcr
+    \hlx{s[\l_@@_tablepadding_bottom_dim]}
+    \@@_orig_endarray:
+    \tl_use:N \l_@@_restore_tl
+}
+
+\cs_set_eq:NN \@@_orig_tab@startrow: \tab@startrow
+\cs_set_nopar:Npn \tab@startrow {
+    \@@_orig_tab@startrow:
+    \bool_if:NF \g_@@_inrow_bool {
+        \bool_gset_true:N \g_@@_inrow_bool
+        \int_gincr:N \g_@@_row_int
+        \int_gset_eq:NN \g_@@_col_int \c_one
+        \dim_gzero:N \g_@@_ht_dim
+        \dim_gzero:N \g_@@_dp_dim
+    }
+}
+
+\cs_set_eq:NN \@@_orig_tab@arraycr: \tab@arraycr
+\cs_set_protected_nopar:Npn \tab@arraycr {
+    \bool_if:NT \g_@@_inrow_bool {
+        \bool_gset_false:N \g_@@_inrow_bool
+        \@@_fix_valign_end:
+    }
+    \@@_orig_tab@arraycr:
+}
+
+
+
+\cs_set_eq:NN \@@_orig_multicolumn:w \multicolumn
+\cs_set:Npn \multicolumn#1#2#3 {
+    \@@_orig_multicolumn:w {#1}{#2}{
+        #3
+        \int_gadd:Nn \g_@@_col_int {#1}
+    }
+}
+
+
+\cs_new_protected_nopar:Nn \@@_fix_valign_end: {
+    \exp_args:NV \tl_if_eq:nnTF \tab@hlstate {b} {
+        \dim_gadd:Nn \tab@endheight {
+            \g_@@_dp_dim - \box_dp:N \@arstrutbox
+        }
+    }{
+        \int_compare:nNnT \g_@@_row_int = \c_one {
+            \dim_gadd:Nn \tab@endheight {
+                \g_@@_ht_dim - \box_ht:N \@arstrutbox
+            }
+        }
+    }
+}
+
+\colpush{tabular}
+
+\coldef n{\tabcoltype{
+    \@@_begincell:n{}
+}{
+    \@@_endcell:
+}}
+\coldef l{\tabcoltype{
+    \@@_begincell:n
+        {\@@_use_setter:nn {text-align} {left}}
+}{
+    \@@_endcell:
+}}
+\coldef c{\tabcoltype{
+    \@@_begincell:n
+        {\@@_use_setter:nn {text-align} {center}}
+}{
+    \@@_endcell:
+}}
+\coldef r{\tabcoltype{
+    \@@_begincell:n
+        {\@@_use_setter:nn {text-align} {right}}
+}{
+    \@@_endcell:
+}}
+\coldef M#1{\@@_MTcol:nn {math}{#1}}
+\coldef T#1{\@@_MTcol:nn {text}{#1}}
+\cs_new_protected_nopar:Nn \@@_MTcol:nn {
+    % TODO: error if align not l, c, or r
+    \exp_args:Nx \tabcoltype {
+        \exp_not:N \@@_begincell:n {
+            \exp_not:n {\@@_use_setter:nn {math-mode} {#1} }
+            \exp_not:n {\@@_use_setter:nn {text-align}} {
+                \str_case:nn {#2} {
+                    {l} {left}
+                    {c} {center}
+                    {r} {right}
+                }
+            }
+        }
+    }{
+        \@@_endcell:
+    }
+}
+
+\coldef p#1{\tabcoltype{
+    \@@_begin_par_cell:nn \vtop {#1}
+}{
+    \@@_end_par_cell:n {}
+}}
+\coldef m#1{\tabcoltype{
+    \@@_begin_par_cell:nn {\c_math_toggle_token\vcenter} {#1}
+}{
+    \@@_end_par_cell:n{\c_math_toggle_token}
+}}
+\coldef b#1{\tabcoltype{
+    \@@_begin_par_cell:nn \vbox {#1}
+}{
+    \@@_end_par_cell:n {}
+}}
+
+
+\colpop
+
+% \end{macrocode}
+% Handle various \verb|:nth-child()| forms.
+% \begin{macrocode}
+
+\cs_new_protected_nopar:Nn \@@_nthchild_anb:Nnn {
+    \tl_set:Nx \l_tmpa_tl { +\int_eval:n{\int_mod:nn{#2}{#3}} }
+    \exp_args:NV \tl_if_eq:nnT \l_tmpa_tl { +0 } {
+        \tl_clear:N \l_tmpa_tl
+    }
+    \seq_put_right:Nx #1 { #3n\l_tmpa_tl }
+}
+
+\cs_new_protected_nopar:Nn \@@_seq_nthchild:Nn {
+    \seq_clear:N #1
+    \seq_put_right:Nx #1 {
+        \int_compare:nNnTF{\int_mod:nn{#2}{2}}={0}{even}{odd}
+    }
+    \@@_nthchild_anb:Nnn #1 {#2} {2}
+    \@@_nthchild_anb:Nnn #1 {#2} {3}
+    \seq_put_right:Nx #1 { \int_eval:n{#2} }
+}
+
+\cs_new_protected_nopar:Nn \@@_begincell:n {
+    \@@_begin_raw_cell:n {
+        \@@_seq_nthchild:Nn \l_tmpa_seq { \g_@@_row_int }
+        \@@_seq_nthchild:Nn \l_tmpb_seq { \g_@@_col_int }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \@@_recall_properties:n {tr:nth-child(##1)}
+        }
+        \@@_update_colors:
+        \@@_recall_properties:n {td}
+        \@@_recall_properties:n {tr~td}
+        \seq_map_inline:Nn \l_tmpb_seq {
+            \@@_recall_properties:n {td:nth-child(##1)}
+        }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \@@_recall_properties:n {tr:nth-child(##1)~td}
+        }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \seq_map_inline:Nn \l_tmpb_seq {
+                \@@_recall_properties:n {tr:nth-child(##1)~
+                                         td:nth-child(####1)}
+            }
+        }
+        \@@_update_colors:
+        #1
+        \hbox_set:Nw \l_@@_cell_box
+        \str_case_x:nnF {\@@_get_property:n {math-mode}} {
+            { text } { \tab@btext }
+            { math } { \tab@bmaths }
+        }{% any other treated as |auto|
+            \tab@bgroup
+        }
+    }
+}
+
+\cs_new_protected_nopar:Nn \@@_endcell: {
+    \str_case_x:nnF {\@@_get_property:n {math-mode}} {
+        { text } { \tab@etext }
+        { math } { \tab@emaths }
+    }{% any other treated as |auto|
+        \tab@egroup
+    }
+    \hbox_set_end:
+    \@@_end_raw_cell:
+}
+
+\cs_new_protected_nopar:Nn \@@_begin_par_cell:nn {
+    \savenotes
+    \@@_begin_raw_cell:n{
+        \hbox_set:Nw \l_@@_cell_box
+        #1
+        \bgroup
+        \hsize#2\relax
+        \@arrayparboxrestore
+        \global\@minipagetrue
+        \everypar{
+            \global\@minipagefalse
+            \everypar{}
+        }
+        \@@_recall_properties:n {td~p}
+    }
+}
+\cs_new_protected_nopar:Nn \@@_end_par_cell:n {
+    \ifhmode\@maybe@unskip\par\fi
+    \unskip
+    \egroup
+    #1
+    \hbox_set_end:
+    \@@_end_raw_cell:
+    \spewnotes\hfil
+}
+
+\cs_new_protected_nopar:Nn \@@_begin_raw_cell:n {
+    \group_begin:
+    % Additional init code
+    #1
+    % Install the cell color
+    \@@_update_colors:
+    \tl_use:N \l_@@_color_tl
+}
+
+\cs_new_protected_nopar:Nn \@@_end_raw_cell: {
+    % Here \l_@@_cell_box must contain the contents of the cell
+    %
+    % Handle vpadding and min-height/depth
+    \box_set_ht:Nn \l_@@_cell_box {
+        \dim_max:nn
+            {\box_ht:N \l_@@_cell_box}
+            {\@@_get_property:n {min-height}}
+        + (\@@_get_property:n {padding-top})
+    }
+    \box_set_dp:Nn \l_@@_cell_box {
+        \dim_max:nn
+            {\box_dp:N \l_@@_cell_box}
+            {\@@_get_property:n {min-depth}}
+        + (\@@_get_property:n {padding-bottom})
+    }
+    % To fix vertical alignment later
+    \dim_gset:Nn \g_@@_ht_dim {
+        \dim_max:nn
+            {\g_@@_ht_dim}
+            {\box_ht:N \l_@@_cell_box}
+    }
+    \dim_gset:Nn \g_@@_dp_dim {
+        \dim_max:nn
+            {\g_@@_dp_dim}
+            {\box_dp:N \l_@@_cell_box}
+    }
+    % Handle hpadding and halign
+    \skip_set:Nn \l_tmpa_skip {
+        \dim_max:nn
+            {0pt}
+            { (\@@_get_property:n {min-width})
+                - \box_wd:N \l_@@_cell_box }
+    }
+    \skip_add:Nn \l_tmpa_skip {
+        0pt plus 1fil
+    }
+    \skip_set:Nn \l_@@_left_skip
+        {\@@_get_property:n {padding-left}}
+    \skip_set:Nn \l_@@_right_skip
+        {\@@_get_property:n {padding-right}}
+    \str_case_x:nnF {\@@_get_property:n {text-align}} {
+        { right } {
+            \skip_add:Nn \l_@@_left_skip { \l_tmpa_skip }
+        }
+        { center } {
+            \skip_add:Nn \l_@@_left_skip { \l_tmpa_skip / 2 }
+            \skip_add:Nn \l_@@_right_skip { \l_tmpa_skip / 2 }
+        }
+    }{% any other treated as |left|
+        \skip_add:Nn \l_@@_right_skip { \l_tmpa_skip }
+    }
+    \kern\c_zero_dim
+    \tl_if_empty:NF \l_@@_bgcolor_tl {
+        \group_begin:
+        % Paint a background with leaders
+        \tl_use:N \l_@@_bgcolor_tl % install the color
+        \skip_set:Nn \l_tmpa_skip {
+            \l_@@_left_skip
+            + \box_wd:N \l_@@_cell_box
+            + \l_@@_right_skip
+        }
+        \leaders
+            \vrule
+            \skip_horizontal:N \l_tmpa_skip
+        \skip_horizontal:n {-\l_tmpa_skip}
+        \group_end:
+    }
+    \skip_horizontal:N \l_@@_left_skip
+    \box_use_clear:N \l_@@_cell_box
+    \skip_horizontal:N \l_@@_right_skip
+    \kern\c_zero_dim
+    \group_end:
+}
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+%</package>
+%    \end{macrocode}
+%
+% \end{implementation}
diff --git a/Master/texmf-dist/source/latex/cellprops/cellprops.ins b/Master/texmf-dist/source/latex/cellprops/cellprops.ins
new file mode 100644
index 00000000000..6e7e57d725a
--- /dev/null
+++ b/Master/texmf-dist/source/latex/cellprops/cellprops.ins
@@ -0,0 +1,24 @@
+\iffalse meta-comment
+
+File cellprops.ins (C) Copyright 2016 RIVAUD Julien
+
+It may be distributed and/or modified under the conditions of the
+General Public License (GPL), either version 3 of this
+license or (at your option) any later version.
+
+\fi
+
+\input l3docstrip.tex
+\askforoverwritefalse
+
+\preamble
+\endpreamble
+% stop docstrip adding \endinput
+\postamble
+\endpostamble
+
+\keepsilent
+
+\generate{\file{cellprops.sty} {\from{cellprops.dtx} {package}}}
+
+\endbatchfile
diff --git a/Master/texmf-dist/tex/latex/cellprops/cellprops.sty b/Master/texmf-dist/tex/latex/cellprops/cellprops.sty
new file mode 100644
index 00000000000..78777063c4d
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cellprops/cellprops.sty
@@ -0,0 +1,587 @@
+%%
+%% This is file `cellprops.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% cellprops.dtx  (with options: `package')
+%% 
+%% File: cellprops.dtx (C) Copyright 2016 RIVAUD Julien
+%%
+%% It may be distributed and/or modified under the conditions of the
+%% General Public License (GPL), either version 3 of this
+%% license or (at your option) any later version.
+\NeedsTeXFormat{LaTeX2e}[1995/12/01]
+\RequirePackage{expl3}[2016/01/19]
+\def\ExplFileName{cellprops}
+\def\ExplFileDescription{CSS-like cell and table properties}
+\def\ExplFileDate{2016/04/05}
+\def\ExplFileVersion{1.0}
+\ProvidesExplPackage
+  {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
+
+\RequirePackage{xparse}
+\RequirePackage{xcolor}
+\RequirePackage{mdwtab}
+\cs_set_nopar:Npn \tab@pop #1 { \tl_set:Nx #1 { \tl_tail:N #1 } }
+
+\cs_set:Nn \__cellprops_generic_setter:nnn {
+    \exp_not:N \tl_set:Nn
+    \exp_not:c { l__cellprops_property_value_#2_tl }
+    {#1 {#3}}
+}
+
+\cs_set_nopar:Nn \__cellprops_get_property:n {
+    \tl_use:c { l__cellprops_property_value_#1_tl }
+}
+
+\cs_set_protected_nopar:Nn \__cellprops_get_property:nN {
+    \tl_set_eq:Nc #2 { l__cellprops_property_value_#1_tl }
+}
+\cs_set_protected:Nn \__cellprops_define_properties:nn {
+    \clist_map_inline:nn {#2} {
+        \cs_set:cpn { __cellprops_property_type_##1:nn } {#1}
+    }
+}
+\cs_set_protected:Nn \__cellprops_use_setter:nn {
+    \use:x {
+        \use:c {__cellprops_property_type_#1:nn} {#1} {#2}
+    }
+}
+\cs_set_protected:Nn \__cellprops_parse_properties:nn {
+    \tl_if_exist:cF { l__cellprops_property_group_#1_tl } {
+        \tl_clear:c { l__cellprops_property_group_#1_tl }
+    }
+    \seq_set_split:Nnn \l_tmpa_seq {;} {#2}
+    \seq_map_inline:Nn \l_tmpa_seq {
+        \tl_if_empty:nF {##1} {
+            \exp_args:NNV \seq_set_split:Nnn \l_tmpb_seq \c_colon_str {##1}
+            \int_compare:nNnTF {\seq_count:N \l_tmpb_seq} = \c_two {
+                \seq_get_left:NN \l_tmpb_seq \l_tmpa_tl
+                \exp_args:NNV \str_set:Nn \l_tmpa_str \l_tmpa_tl
+                \seq_get_right:NN \l_tmpb_seq \l_tmpa_tl
+                \cs_if_exist:cTF { __cellprops_property_type_\l_tmpa_str :nn } {
+                    \tl_put_right:cx { l__cellprops_property_group_#1_tl } {
+                        \exp_args:Nc \exp_args:NVV
+                        { __cellprops_property_type_\l_tmpa_str :nn }
+                        \l_tmpa_str \l_tmpa_tl
+                    }
+                }{
+                % TODO: ERROR-no property with that name
+                }
+            }{
+            % TODO: ERROR-too many : or none at all
+            }
+        }
+    }
+}
+
+\cs_set:Nn \__cellprops_fourdim_setter:nn {
+    \__cellprops_fourdim_setter_aux:w
+        {#1}#2~{\q_no_value}~{\q_no_value}~{\q_no_value}~\q_stop
+}
+\cs_set:Npn \__cellprops_fourdim_setter_aux:w #1#2~#3~#4~#5~#6\q_stop {
+    \__cellprops_generic_setter:nnn \exp_not:n {#1-top} {#2}
+    \quark_if_no_value:nTF {#3} {
+        \__cellprops_generic_setter:nnn \exp_not:n {#1-right} {#2}
+        \__cellprops_generic_setter:nnn \exp_not:n {#1-left}  {#2}
+    }{
+        \__cellprops_generic_setter:nnn \exp_not:n {#1-right} {#3}
+        \quark_if_no_value:nTF {#5} {
+            \__cellprops_generic_setter:nnn \exp_not:n {#1-left} {#3}
+        }{
+            \__cellprops_generic_setter:nnn \exp_not:n {#1-left} {#5}
+        }
+    }
+    \quark_if_no_value:nTF {#4} {
+        \__cellprops_generic_setter:nnn \exp_not:n {#1-bottom} {#2}
+    }{
+        \__cellprops_generic_setter:nnn \exp_not:n {#1-bottom} {#4}
+    }
+}
+
+\tl_const:Nn \c__cellprops_inherit_color_tl { \q_nil }
+
+\cs_new_nopar:Nn \__cellprops_color_setter:nn {
+    \str_if_eq:nnTF {#2} {inherit} {
+        \__cellprops_generic_setter:nnn \exp_not:n {#1} {\c__cellprops_inherit_color_tl}
+    }{
+        \str_case_x:nnF { \str_range:nnn {#2} {1} {4} } {
+            {rgb(} {
+                \__cellprops_generic_setter:nnn \use:n {#1} {
+                    \exp_not:n {\color[RGB]} {\str_range:nnn {#2} {5} {-2}}
+                }}
+            {hsl(} {
+                \__cellprops_generic_setter:nnn \use:n {#1} {
+                    \exp_not:n {\color[Hsb]} {\str_range:nnn {#2} {5} {-2}}
+                }}
+        }{
+            \__cellprops_generic_setter:nnn \exp_not:n {#1} {
+                \color{#2}
+            }
+        }
+    }
+}
+\cs_new_nopar:Nn \__cellprops_bgcolor_setter:nn {
+    \str_if_eq:nnTF {#2} {transparent} {
+        \__cellprops_color_setter:nn {#1} {inherit}
+    }{
+        \__cellprops_color_setter:nn {#1} {#2}
+    }
+}
+
+\__cellprops_define_properties:nn {
+    \__cellprops_generic_setter:nnn \exp_not:n
+}{
+    padding-top,
+    padding-right,
+    padding-bottom,
+    padding-left,
+    min-height,
+    min-depth,
+    min-width,
+}
+
+\__cellprops_define_properties:nn {
+    \__cellprops_fourdim_setter:nn
+}{
+    padding
+}
+
+\__cellprops_define_properties:nn {
+    \__cellprops_generic_setter:nnn \tl_to_str:n
+}{
+    text-align,
+    math-mode,
+}
+
+\__cellprops_define_properties:nn {
+    \__cellprops_color_setter:nn
+}{
+    color,
+}
+
+\__cellprops_define_properties:nn {
+    \__cellprops_bgcolor_setter:nn
+}{
+    background-color,
+}
+
+\NewDocumentCommand \cellprops { m } {
+    \__cellprops_parse_css:n {#1}
+}
+
+\cs_new_protected:Nn \__cellprops_parse_css:n {
+    \__cellprops_parse_css:w #1 \q_mark {\q_nil} \q_stop
+}
+\NewDocumentCommand \__cellprops_parse_css:w { lmu{\q_stop} } {
+    \quark_if_nil:nF {#2} {
+        \clist_map_inline:nn {#1} {
+            \__cellprops_parse_properties:nn {##1} {#2}
+        }
+        \__cellprops_parse_css:w #3 \q_stop
+    }
+}
+
+\cs_set_protected:Nn \__cellprops_recall_properties:n {
+    \tl_if_exist:cT { l__cellprops_property_group_#1_tl } {
+        \tl_use:c { l__cellprops_property_group_#1_tl }
+    }
+    \clist_map_inline:nn { \@currenvir } {
+        \tl_if_exist:cT { l__cellprops_property_group_##1~#1_tl } {
+            \tl_use:c { l__cellprops_property_group_##1~#1_tl }
+        }
+    }
+}
+
+\dim_new:N \l__cellprops_colsep_dim
+\ExplSyntaxOff
+\cellprops{
+    td {
+        padding: 0pt \csname l__cellprops_colsep_dim\endcsname;
+        min-height: 0pt;
+        min-depth: 0pt;
+        min-width: 0pt;
+        text-align: left;
+        math-mode: auto;
+        color: inherit;
+        background-color: transparent;
+    }
+    tr {
+        color: inherit;
+        background-color: transparent;
+    }
+    table {
+        padding: 0pt; % No change at load time
+        color: inherit;
+        background-color: transparent;
+    }
+}
+\ExplSyntaxOn
+
+\int_new:N \g__cellprops_row_int
+\int_new:N \g__cellprops_col_int
+\bool_new:N \g__cellprops_inrow_bool
+\bool_gset_false:N \g__cellprops_inrow_bool
+
+\box_new:N \l__cellprops_cell_box
+\skip_new:N \l__cellprops_left_skip
+\skip_new:N \l__cellprops_right_skip
+\dim_new:N \g__cellprops_ht_dim
+\dim_new:N \g__cellprops_dp_dim
+
+\tl_new:N \l__cellprops_restore_tl
+
+\dim_new:N \l__cellprops_tablepadding_top_dim
+\dim_new:N \l__cellprops_tablepadding_bottom_dim
+\tl_new:N  \l__cellprops_color_tl
+\tl_new:N  \l__cellprops_bgcolor_tl
+
+\cs_set_eq:NN \__cellprops_orig_array: \@array
+\cs_set_protected_nopar:Npn \@array[#1]#2 {
+    \tl_set:Nx \l__cellprops_restore_tl {
+        \bool_if:NTF \g__cellprops_inrow_bool {
+            \exp_not:n {\bool_gset_true:N \g__cellprops_inrow_bool}
+        }{
+            \exp_not:n {\bool_gset_false:N \g__cellprops_inrow_bool}
+        }
+        \exp_not:n { \int_gset:Nn \g__cellprops_row_int }
+            { \int_use:N \g__cellprops_row_int }
+        \exp_not:n { \int_gset:Nn \g__cellprops_col_int }
+            { \int_use:N \g__cellprops_col_int }
+        \exp_not:n { \dim_gset:Nn \g__cellprops_ht_dim }
+            { \dim_use:N \g__cellprops_ht_dim }
+        \exp_not:n { \dim_gset:Nn \g__cellprops_dp_dim }
+            { \dim_use:N \g__cellprops_dp_dim }
+    }
+    \int_gzero:N \g__cellprops_row_int
+    \bool_gset_false:N \g__cellprops_inrow_bool
+    \cs_set_eq:NN \__cellprops_orig_tab@initread: \tab@initread
+    \cs_set_protected_nopar:Npn \tab@initread {
+        \cs_set_eq:NN \tab@initread \__cellprops_orig_tab@initread:
+        \tab@initread
+        \tl_put_left:Nn \tab@tabtext {\int_gincr:N \g__cellprops_col_int}
+    }
+    \dim_set_eq:NN \l__cellprops_colsep_dim \col@sep
+    \dim_zero:N \col@sep
+    \dim_zero:N \tab@extrasep
+    \group_begin:
+        \__cellprops_recall_properties:n {table}
+        \dim_gset:Nn \g_tmpa_dim { \__cellprops_get_property:n {padding-top} }
+        \dim_gset:Nn \g_tmpb_dim { \__cellprops_get_property:n {padding-bottom} }
+        \__cellprops_update_colors:
+        \tl_gset_eq:NN \g_tmpa_tl \l__cellprops_color_tl
+        \tl_gset_eq:NN \g_tmpb_tl \l__cellprops_bgcolor_tl
+    \group_end:
+    \dim_set_eq:NN \l__cellprops_tablepadding_top_dim \g_tmpa_dim
+    \dim_set_eq:NN \l__cellprops_tablepadding_bottom_dim \g_tmpb_dim
+    \tl_set_eq:NN \l__cellprops_color_tl \g_tmpa_tl
+    \tl_set_eq:NN \l__cellprops_bgcolor_tl \g_tmpb_tl
+    \__cellprops_recall_properties:n {tr}
+    \__cellprops_orig_array:[{#1}]{#2}
+    \hlx{s[\l__cellprops_tablepadding_top_dim]}
+}
+
+
+\cs_new_protected_nopar:Nn \__cellprops_update_color:Nn {
+    \__cellprops_get_property:nN {#2} \l_tmpc_tl
+    \exp_args:NV \tl_if_eq:NNF \l_tmpc_tl \c__cellprops_inherit_color_tl {
+        \tl_set_eq:NN #1 \l_tmpc_tl
+    }
+}
+
+\cs_set_protected_nopar:Nn \__cellprops_update_colors: {
+    \__cellprops_update_color:Nn \l__cellprops_color_tl {color}
+    \__cellprops_update_color:Nn \l__cellprops_bgcolor_tl {background-color}
+}
+
+\cs_set_eq:NN \__cellprops_orig_endarray: \endarray
+\cs_set_nopar:Npn \endarray {
+    \crcr
+    \hlx{s[\l__cellprops_tablepadding_bottom_dim]}
+    \__cellprops_orig_endarray:
+    \tl_use:N \l__cellprops_restore_tl
+}
+
+\cs_set_eq:NN \__cellprops_orig_tab@startrow: \tab@startrow
+\cs_set_nopar:Npn \tab@startrow {
+    \__cellprops_orig_tab@startrow:
+    \bool_if:NF \g__cellprops_inrow_bool {
+        \bool_gset_true:N \g__cellprops_inrow_bool
+        \int_gincr:N \g__cellprops_row_int
+        \int_gset_eq:NN \g__cellprops_col_int \c_one
+        \dim_gzero:N \g__cellprops_ht_dim
+        \dim_gzero:N \g__cellprops_dp_dim
+    }
+}
+
+\cs_set_eq:NN \__cellprops_orig_tab@arraycr: \tab@arraycr
+\cs_set_protected_nopar:Npn \tab@arraycr {
+    \bool_if:NT \g__cellprops_inrow_bool {
+        \bool_gset_false:N \g__cellprops_inrow_bool
+        \__cellprops_fix_valign_end:
+    }
+    \__cellprops_orig_tab@arraycr:
+}
+
+\cs_set_eq:NN \__cellprops_orig_multicolumn:w \multicolumn
+\cs_set:Npn \multicolumn#1#2#3 {
+    \__cellprops_orig_multicolumn:w {#1}{#2}{
+        #3
+        \int_gadd:Nn \g__cellprops_col_int {#1}
+    }
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_fix_valign_end: {
+    \exp_args:NV \tl_if_eq:nnTF \tab@hlstate {b} {
+        \dim_gadd:Nn \tab@endheight {
+            \g__cellprops_dp_dim - \box_dp:N \@arstrutbox
+        }
+    }{
+        \int_compare:nNnT \g__cellprops_row_int = \c_one {
+            \dim_gadd:Nn \tab@endheight {
+                \g__cellprops_ht_dim - \box_ht:N \@arstrutbox
+            }
+        }
+    }
+}
+
+\colpush{tabular}
+
+\coldef n{\tabcoltype{
+    \__cellprops_begincell:n{}
+}{
+    \__cellprops_endcell:
+}}
+\coldef l{\tabcoltype{
+    \__cellprops_begincell:n
+        {\__cellprops_use_setter:nn {text-align} {left}}
+}{
+    \__cellprops_endcell:
+}}
+\coldef c{\tabcoltype{
+    \__cellprops_begincell:n
+        {\__cellprops_use_setter:nn {text-align} {center}}
+}{
+    \__cellprops_endcell:
+}}
+\coldef r{\tabcoltype{
+    \__cellprops_begincell:n
+        {\__cellprops_use_setter:nn {text-align} {right}}
+}{
+    \__cellprops_endcell:
+}}
+\coldef M#1{\__cellprops_MTcol:nn {math}{#1}}
+\coldef T#1{\__cellprops_MTcol:nn {text}{#1}}
+\cs_new_protected_nopar:Nn \__cellprops_MTcol:nn {
+    % TODO: error if align not l, c, or r
+    \exp_args:Nx \tabcoltype {
+        \exp_not:N \__cellprops_begincell:n {
+            \exp_not:n {\__cellprops_use_setter:nn {math-mode} {#1} }
+            \exp_not:n {\__cellprops_use_setter:nn {text-align}} {
+                \str_case:nn {#2} {
+                    {l} {left}
+                    {c} {center}
+                    {r} {right}
+                }
+            }
+        }
+    }{
+        \__cellprops_endcell:
+    }
+}
+
+\coldef p#1{\tabcoltype{
+    \__cellprops_begin_par_cell:nn \vtop {#1}
+}{
+    \__cellprops_end_par_cell:n {}
+}}
+\coldef m#1{\tabcoltype{
+    \__cellprops_begin_par_cell:nn {\c_math_toggle_token\vcenter} {#1}
+}{
+    \__cellprops_end_par_cell:n{\c_math_toggle_token}
+}}
+\coldef b#1{\tabcoltype{
+    \__cellprops_begin_par_cell:nn \vbox {#1}
+}{
+    \__cellprops_end_par_cell:n {}
+}}
+
+\colpop
+
+
+\cs_new_protected_nopar:Nn \__cellprops_nthchild_anb:Nnn {
+    \tl_set:Nx \l_tmpa_tl { +\int_eval:n{\int_mod:nn{#2}{#3}} }
+    \exp_args:NV \tl_if_eq:nnT \l_tmpa_tl { +0 } {
+        \tl_clear:N \l_tmpa_tl
+    }
+    \seq_put_right:Nx #1 { #3n\l_tmpa_tl }
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_seq_nthchild:Nn {
+    \seq_clear:N #1
+    \seq_put_right:Nx #1 {
+        \int_compare:nNnTF{\int_mod:nn{#2}{2}}={0}{even}{odd}
+    }
+    \__cellprops_nthchild_anb:Nnn #1 {#2} {2}
+    \__cellprops_nthchild_anb:Nnn #1 {#2} {3}
+    \seq_put_right:Nx #1 { \int_eval:n{#2} }
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_begincell:n {
+    \__cellprops_begin_raw_cell:n {
+        \__cellprops_seq_nthchild:Nn \l_tmpa_seq { \g__cellprops_row_int }
+        \__cellprops_seq_nthchild:Nn \l_tmpb_seq { \g__cellprops_col_int }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \__cellprops_recall_properties:n {tr:nth-child(##1)}
+        }
+        \__cellprops_update_colors:
+        \__cellprops_recall_properties:n {td}
+        \__cellprops_recall_properties:n {tr~td}
+        \seq_map_inline:Nn \l_tmpb_seq {
+            \__cellprops_recall_properties:n {td:nth-child(##1)}
+        }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \__cellprops_recall_properties:n {tr:nth-child(##1)~td}
+        }
+        \seq_map_inline:Nn \l_tmpa_seq {
+            \seq_map_inline:Nn \l_tmpb_seq {
+                \__cellprops_recall_properties:n {tr:nth-child(##1)~
+                                         td:nth-child(####1)}
+            }
+        }
+        \__cellprops_update_colors:
+        #1
+        \hbox_set:Nw \l__cellprops_cell_box
+        \str_case_x:nnF {\__cellprops_get_property:n {math-mode}} {
+            { text } { \tab@btext }
+            { math } { \tab@bmaths }
+        }{% any other treated as |auto|
+            \tab@bgroup
+        }
+    }
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_endcell: {
+    \str_case_x:nnF {\__cellprops_get_property:n {math-mode}} {
+        { text } { \tab@etext }
+        { math } { \tab@emaths }
+    }{% any other treated as |auto|
+        \tab@egroup
+    }
+    \hbox_set_end:
+    \__cellprops_end_raw_cell:
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_begin_par_cell:nn {
+    \savenotes
+    \__cellprops_begin_raw_cell:n{
+        \hbox_set:Nw \l__cellprops_cell_box
+        #1
+        \bgroup
+        \hsize#2\relax
+        \@arrayparboxrestore
+        \global\@minipagetrue
+        \everypar{
+            \global\@minipagefalse
+            \everypar{}
+        }
+        \__cellprops_recall_properties:n {td~p}
+    }
+}
+\cs_new_protected_nopar:Nn \__cellprops_end_par_cell:n {
+    \ifhmode\@maybe@unskip\par\fi
+    \unskip
+    \egroup
+    #1
+    \hbox_set_end:
+    \__cellprops_end_raw_cell:
+    \spewnotes\hfil
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_begin_raw_cell:n {
+    \group_begin:
+    % Additional init code
+    #1
+    % Install the cell color
+    \__cellprops_update_colors:
+    \tl_use:N \l__cellprops_color_tl
+}
+
+\cs_new_protected_nopar:Nn \__cellprops_end_raw_cell: {
+    % Here \l__cellprops_cell_box must contain the contents of the cell
+    %
+    % Handle vpadding and min-height/depth
+    \box_set_ht:Nn \l__cellprops_cell_box {
+        \dim_max:nn
+            {\box_ht:N \l__cellprops_cell_box}
+            {\__cellprops_get_property:n {min-height}}
+        + (\__cellprops_get_property:n {padding-top})
+    }
+    \box_set_dp:Nn \l__cellprops_cell_box {
+        \dim_max:nn
+            {\box_dp:N \l__cellprops_cell_box}
+            {\__cellprops_get_property:n {min-depth}}
+        + (\__cellprops_get_property:n {padding-bottom})
+    }
+    % To fix vertical alignment later
+    \dim_gset:Nn \g__cellprops_ht_dim {
+        \dim_max:nn
+            {\g__cellprops_ht_dim}
+            {\box_ht:N \l__cellprops_cell_box}
+    }
+    \dim_gset:Nn \g__cellprops_dp_dim {
+        \dim_max:nn
+            {\g__cellprops_dp_dim}
+            {\box_dp:N \l__cellprops_cell_box}
+    }
+    % Handle hpadding and halign
+    \skip_set:Nn \l_tmpa_skip {
+        \dim_max:nn
+            {0pt}
+            { (\__cellprops_get_property:n {min-width})
+                - \box_wd:N \l__cellprops_cell_box }
+    }
+    \skip_add:Nn \l_tmpa_skip {
+        0pt plus 1fil
+    }
+    \skip_set:Nn \l__cellprops_left_skip
+        {\__cellprops_get_property:n {padding-left}}
+    \skip_set:Nn \l__cellprops_right_skip
+        {\__cellprops_get_property:n {padding-right}}
+    \str_case_x:nnF {\__cellprops_get_property:n {text-align}} {
+        { right } {
+            \skip_add:Nn \l__cellprops_left_skip { \l_tmpa_skip }
+        }
+        { center } {
+            \skip_add:Nn \l__cellprops_left_skip { \l_tmpa_skip / 2 }
+            \skip_add:Nn \l__cellprops_right_skip { \l_tmpa_skip / 2 }
+        }
+    }{% any other treated as |left|
+        \skip_add:Nn \l__cellprops_right_skip { \l_tmpa_skip }
+    }
+    \kern\c_zero_dim
+    \tl_if_empty:NF \l__cellprops_bgcolor_tl {
+        \group_begin:
+        % Paint a background with leaders
+        \tl_use:N \l__cellprops_bgcolor_tl % install the color
+        \skip_set:Nn \l_tmpa_skip {
+            \l__cellprops_left_skip
+            + \box_wd:N \l__cellprops_cell_box
+            + \l__cellprops_right_skip
+        }
+        \leaders
+            \vrule
+            \skip_horizontal:N \l_tmpa_skip
+        \skip_horizontal:n {-\l_tmpa_skip}
+        \group_end:
+    }
+    \skip_horizontal:N \l__cellprops_left_skip
+    \box_use_clear:N \l__cellprops_cell_box
+    \skip_horizontal:N \l__cellprops_right_skip
+    \kern\c_zero_dim
+    \group_end:
+}
+%% 
+%%
+%% End of file `cellprops.sty'.
diff --git a/Master/tlpkg/bin/tlpkg-ctan-check b/Master/tlpkg/bin/tlpkg-ctan-check
index 951d435e65e..ab0a51fe2cc 100755
--- a/Master/tlpkg/bin/tlpkg-ctan-check
+++ b/Master/tlpkg/bin/tlpkg-ctan-check
@@ -139,7 +139,7 @@ my @TLP_working = qw(
     cbcoptic cbfonts cbfonts-fd
     cc-pl ccaption ccfonts ccicons cclicenses
     cd cd-cover cdpbundl
-    cell cellspace celtic censor cesenaexam cfr-initials cfr-lm
+    cell cellprops cellspace celtic censor cesenaexam cfr-initials cfr-lm
     changebar changelayout changepage changes chappg chapterfolder
     chbibref cheatsheet checkcites checklistings chem-journal
     chemarrow chembst chemcompounds chemcono chemexec
diff --git a/Master/tlpkg/tlpsrc/cellprops.tlpsrc b/Master/tlpkg/tlpsrc/cellprops.tlpsrc
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/Master/tlpkg/tlpsrc/cellprops.tlpsrc
diff --git a/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc b/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc
index dad9a96a4ba..7106b1249d8 100644
--- a/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc
+++ b/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc
@@ -137,6 +137,7 @@ depend cclicenses
 depend cd
 depend cd-cover
 depend cdpbundl
+depend cellprops
 depend cellspace
 depend censor
 depend changebar