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-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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-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.
diff --git a/macros/latex/contrib/styledcmd/styledcmd.dtx b/macros/latex/contrib/styledcmd/styledcmd.dtx
index 79da85718a..c11714952a 100644
--- a/macros/latex/contrib/styledcmd/styledcmd.dtx
+++ b/macros/latex/contrib/styledcmd/styledcmd.dtx
@@ -1,4 +1,4 @@
-% \iffalse meta-comment
+	% \iffalse meta-comment
 %
 %  styledcmd Handle multiple versions for user-defined macros in LaTeX
 %  Copyright (C) 2021  Paolo De Donato <dedonato95@hotmail.it>
@@ -22,11 +22,12 @@
 %
 % \iffalse
 %<*driver>
-\ProvidesFile{styledcmd.dtx}[2021/08/20 1.1 Command with different styles]
+\ProvidesFile{styledcmd.dtx}[2022/12/13 2.0 Command with different styles]
 %</driver>
 %<package>\NeedsTeXFormat{LaTeX2e}
-%<package>\RequirePackage{expl3}[2018-04-12]
-%<package>\ProvidesExplPackage{styledcmd}{2021/08/20}{1.1}{Command with different styles}
+%<package>\RequirePackage{expl3}[2022-04-10]
+%<package>\ProvidesExplPackage{styledcmd}{2022/12/13}{2.0}{Command with different styles}
+%<package>\RequirePackage{lt3rawobjects}[2022-12-12]
 %<package>\RequirePackage{xparse}
 %<*driver>
 \documentclass[full]{l3doc}
@@ -44,7 +45,7 @@
 %
 %\title{styledcmd}
 %\author{Paolo De Donato}
-%\date{23 August 2021}
+%\date{13 December 2022}
 %
 %\maketitle
 %
@@ -64,16 +65,19 @@
 %You can create a formatted macro via the following command
 %\begin{function}{\newstyledcmd, \renewstyledcmd, \providestyledcmd}
 %\begin{syntax}
-%|\newstyledcmd| \marg{macro name} \marg{format name} \oarg{number of arguments} \marg{code}
+%\tn{newstyledcmd} \{\tn{\meta{macro name}}\} \marg{style name} \oarg{number of arguments} \marg{code}
 %\end{syntax}
+%it has the same syntax of \tn{newcommand} except for the \meta{style name} argument that specify the style. This macro alone creates commands \tn{\meta{macro name}} and \tn{\meta{macro name}}\oarg{style name} that both expand as \meta{code}.
 %\end{function}
 %
-%You can repeat that command for the same macro in order to create different styles, for example these commands
+%The most important feature is that you can call \tn{newstyledcmd} multiple times with the same \meta{macro name} but different \meta{style name}, in this way each of \tn{\meta{macro name}}\oarg{style name} expands to \meta{code} associated to specified \meta{style name}. Notice that if you don't specify a style with just calling \tn{meta{macro name}} then it expands as the first created style, that style is the \emph{default} one for such command.
+%
+%As an example these commands
 %\begin{verbatim}
 %    \newstyledcmd{\saluto}{informal}[1]{Hi #1}
 %    \newstyledcmd{\saluto}{formal}[1]{Good morning #1}
 %\end{verbatim}
-%define the two formats \verb+informal+ and \verb+formal+ for macro \tn{saluto}. You can directly use the command \tn{saluto} and use the default format (the first declared one) or using a specific style by passing it as an optional argument. So commands
+%define the two formats \verb+informal+ and \verb+formal+ for macro \tn{saluto}. Once you've created these two styles for \tn{saluto} you can use it with or without the style name argument, for example these commands
 %\begin{verbatim}
 %    \saluto{uncle}
 %    \saluto[informal]{uncle}
@@ -82,22 +86,22 @@
 %will be expanded respectively as \saluto{uncle}, \saluto[informal]{uncle}, \saluto[formal]{uncle}. With the same syntax you can use \tn{renewstyledcmd} and \tn{providestyledcmd} with the same meaning of \tn{renewcommand} and \tn{providecommand} respectively.
 %
 %\section{How do you change the default style?}
-%In order to change the default style (the one used when you don't choose explicitily a format) you need to execute the following command
-%\begin{function}{\setGlobalStyle}
+%In order to change the default style (the one used when you don't choose explicitily a style) you need to execute the following command
+%\begin{function}{\SetGlobalStyle}
 %\begin{syntax}
-%|\setGlobalStyle| \marg{command name} \marg{new default format name}
+%\tn{SetGlobalStyle} \{\cs{\meta{command name}}\} \marg{new default style name}
 %\end{syntax}
 %\end{function}
-%\setGlobalStyle{\saluto}{formal}
+%\SetGlobalStyle{\saluto}{formal}
 %
-%For example in order to change the default style of command \tn{saluto} from \verb+informal+ to \verb+formal+ you need to execute command \verb+\setGlobalStyle{\saluto}{formal}+. With this command the output of preceding commands will instead be \saluto{uncle}, \saluto[informal]{uncle}, \saluto[formal]{uncle}.
+%For example in order to change the default style of command \tn{saluto} from \verb+informal+ to \verb+formal+ you need to execute command \tn{SetGlobalStyle}\{\cs{saluto}\}\{\verb+formal+\}. With this command the output of preceding commands will instead be \saluto{uncle}, \saluto[informal]{uncle}, \saluto[formal]{uncle}.
 %
 %\section{Customize parameters with \pkg{xparse}}
 %\thpkg{} loads automatically the \pkg{xparse} package for internal reasons. You can also define new styled commands with the same syntax used by  \tn{NewDocumentCommand} with the following command
 %
 %\begin{function}{\NewDocStyledCMD, \RenewDocStyledCMD, \ProvideDocStyledCMD}
 %\begin{syntax}
-%|\NewDocStyledCMD| \marg{command name} \marg{format name} \marg{arguments format} \marg{code}
+%\tn{NewDocStyledCMD} \Arg{\cs{\meta{command name}}} \Arg{format name} \Arg{arguments format} \Arg{code}
 %\end{syntax}
 %\end{function}
 %
@@ -114,116 +118,132 @@
 %    \prova[stylea]<Hello>
 %    \prova[styleb]<Hello>
 %\end{verbatim}
-%which are expanded respectively as \prova<Hello>; \prova[stylea]<Hello>; \prova[styleb]<Hello>. Notice that the first optional argument passed to a command defined via \tn{NewDocStyleCMD} will always be interpreted as a style argument, so you should use another syntax for optional arguments or use a mandatory argument for the first place.
+%which are expanded respectively as \prova<Hello>; \prova[stylea]<Hello>; \prova[styleb]<Hello>. Notice that the first optional argument passed to a command defined via \tn{NewDocStyledCMD} will always be interpreted as a style argument, so you should use another syntax for optional arguments or use a mandatory argument for the first place.
 %
 %For example this declaration \verb+\NewDocStyledCMD{\bad}{style}{o m}{Bad declaration}+ should be avoided since for example \verb+\bad[arg1]{arg2}+ will interpret \verb+arg1+ as a style name and not as the first optional argument for \tn{bad}.
 %
+%\section{Expandable commands}
+%Coomands created by \tn{newstyledcmd} doesn't work very well in expansion only context due to the presence of optional style argument. In order to be able to create expandable commands you should instead use
 %
-%\section{Commands group}
-%You can define also a commands group in which defined commands will share the same styles, that allow you to change the style for all commands in that group.
-%
-%To start a group you have to use the following macro
-%\begin{function}{\styBeginGroup}
-%\begin{syntax}
-%|\styBeginGroup| \marg{group name}
-%\end{syntax}
-%\end{function}
-%any group should be terminated via the following macro
-%\begin{function}{\styEndGroup}
+%\begin{function}{\newstyledcmdExp, \renewstyledcmdExp, \providestyledcmdExp}
 %\begin{syntax}
-%|\styEndGroup|
+%\tn{newstyledcmdExp} \{\tn{\meta{macro name}}\} \marg{style name} \oarg{number of arguments} \marg{code}
 %\end{syntax}
 %\end{function}
+% Despite commands created with \tn{newstyledcmd} the style name of commands created by \tn{newstyledcmdExp} are always mandatory and must be passed inside curly braces. In order to use the default style just pass an empty string as style name.
 %
-%In each group commands are grouped toghether according to the used style. So inside a group you can define a style with the command
-%\begin{function}{\styBeginStyle}
-%\begin{syntax}
-%|\styBeginStyle| \marg{format name}
-%\end{syntax}
-%\end{function}
-%and once you've finished to define command with that style you have to close it with the command
-%\begin{function}{\styEndStyle}
-%\begin{syntax}
-%|\styEndStyle|
-%\end{syntax}
-%\end{function}
+% For example this code
+%\begin{verbatim}
+%    \newstyledcmdExp{\expCMD}{sty1}{Style 1}
+%    \newstyledcmdExp{\expCMD}{sty2}{Style 2}
 %
-%In order to define a command inside a \tn{styBeginStyle} ... \tn{styEndStyle} you can use
+%    \expCMD{}
+%    \expCMD{sty1}
+%    \expCMD{sty2}
+%\end{verbatim}
+%expand as \newstyledcmdExp{\expCMD}{sty1}{Style 1}\newstyledcmdExp{\expCMD}{sty2}{Style 2} \expCMD{} \expCMD{sty1} \expCMD{sty2}
 %
-%\begin{function}{\newGstyledcmd}
+%\section{Groups}
+%The group mechanism is very different from \thpkg\ |1.2| and preceding versions. From |2.0| styled commands can be added to a group in order to change toghether their style. Groups are automatically created when you're tying to add commands to it:
+%\begin{function}{\AddCMDToGroup}
 %\begin{syntax}
-%|\newGstyledcmd| \marg{command name} \oarg{arguments number} \marg{code}
+% \tn{AddCMDToGroup} \Arg{group name} \Arg{comma list of commands}
 %\end{syntax}
 %\end{function}
-%or
-%\begin{function}{\NewGDocStyledCMD}
+% You can change the default style for each member of a group with
+%\begin{function}{\SetGroupStyle} 
 %\begin{syntax}
-%|\NewGDocStyledCMD| \marg{command name} \marg{arguments format} \marg{code}
+% \tn{SetGroupStyle} \Arg{group name} \Arg{style name}
 %\end{syntax}
 %\end{function}
-%if you want to use the \tn{NewDocumentCommand} syntax.
-%
-%Notice that in this case you mustn't define the style name in \tn{newGstyledcmd} or in \tn{NewGDocStyledCMD} since they use the format defined in the enclosing \tn{styBeginStyle} ... \tn{styEndStyle}. The defined style for a group is the first defined one, in order to change the default format you should use the following macro
 %
-%\begin{function}{\setGroupStyle}
-%\begin{syntax}
-%|\setGroupStyle| \marg{group name} \marg{new default style}
-%\end{syntax}
+%Suppose you've created the following styled commands:
+%
+% \begin{verbatim}
+%  \newstyledcmd{\LenUnit}{SI}{metre}
+%  \newstyledcmd{\MasUnit}{SI}{kilo}
+%
+%  \newstyledcmd{\LenUnit}{old}{yard}
+%  \newstyledcmd{\MasUnit}{old}{pound}
+% \end{verbatim}
+%
+%  \newstyledcmd{\LenUnit}{SI}{metre}
+%  \newstyledcmd{\MasUnit}{SI}{kilo}
+%
+%  \newstyledcmd{\LenUnit}{old}{yard}
+%  \newstyledcmd{\MasUnit}{old}{pound}
+%
+% Commands \tn{LenUnit}, \tn{MasUnit} will expand as \LenUnit, \MasUnit\ respectively since |SI| is the default style. We've used \tn{newstyledcmd} but you could use also \tn{NewDocStyledCMD}, \tn{newstyledcmdExp} or any other command generated as in section \ref{advanced}. To add these two commands to group |Units| run
+% \begin{verbatim}
+%  \AddCMDToGroup{Units}{\LenUnit, \MasUnit}
+% \end{verbatim}
+%  \AddCMDToGroup{Units}{\LenUnit}\AddCMDToGroup{Units}{\MasUnit}\SetGroupStyle{Units}{old}If you want to set |old| as the default style for these commands just run
+% \begin{verbatim}
+%  \SetGroupStyle{Units}{old}
+% \end{verbatim}
+% now \tn{LenUnit}, \tn{MasUnit} will expand as \LenUnit, \MasUnit\ respectively.
+%
+% Notice that if the specified group already exists then \tn{AddCMDToGroup} just appends the speficied commands to it. In particular this
+% \begin{verbatim}
+%  \AddCMDToGroup{Units}{\LenUnit}
+%  \AddCMDToGroup{Units}{\MasUnit}
+% \end{verbatim}
+% is equivalent to write
+% \begin{verbatim}
+%  \AddCMDToGroup{Units}{\LenUnit, \MasUnit}
+% \end{verbatim}
+%
+%\section{Advanced usage}
+%\label{advanced}This section is for advanced users and package mantainers that knows \LaTeX3, It's not needed to use \thpkg\ daily or creating documents. If \tn{newstyledcmd}, \tn{NewDocStyledCMD} and \tn{newstyledcmdExp} aren't suitable for you it's possible to create a custom styled command generator, but we first need to know a bit of the internal structure of \thpkg.
+%
+% What you see as a styled command it's instead a collection of different macros:
+% \begin{itemize}
+%    \item multiple \emph{effective styled commands} (\emph{ES commands}), one for each style;
+%    \item a single \emph{dispatch command} that's called by the user and expands to the specified ES command.
+% \end{itemize}
+%
+% \begin{function}{\stycmd_generate:NNN, \stycmd_generate:NN}
+%  \begin{syntax}
+%  \cs{stycmd_generate:NNN} \meta{generator name} \meta{ES commands generator} \meta{dispatch command generator}
+%  \cs{stycmd_generate:NN} \meta{generator name} \meta{ES commands generator}
+%  \end{syntax}
+%  Creates a generator of styled commands with name \meta{generator name}. Argument \meta{ES commands generator} is used to create ES commands and should accept a macro name as the first argument, but there aren't other restrictions on remaining arguments. Suitable ES commands generators are \tn{newcommand} and \tn{NewDocumentCommand}.
+% \end{function}
+%
+% Argument \meta{dispatch command generator} should generate the dispatch command. Despite \meta{ES commands generator} this command must have only one parameter, a string representing the command to be created. Suitable values for this parameter are:
+%
+% \begin{function}{\stycmd_xparsecmd:N}
+%  \begin{syntax}
+%   \cs{stycmd_xparsecmd:N} \meta{command}
+%  \end{syntax}
+%  Creates the dispatch command with \tn{ProvideDocumentCommand} with optional style name parameter (used in \tn{newstyledcmd} and \tn{NewDocStyledCMD}).
 %\end{function}
 %
-%Consider now the following example
-%
-%    \styBeginGroup{saluti}
-%    \styBeginStyle{formal}
-%    \newGstyledcmd{\ciao}[1]{Good morning #1}
-%    \newGstyledcmd{\via}{Goodbye}
-%    \styEndStyle
-%    \styBeginStyle{informal}
-%    \newGstyledcmd{\ciao}[1]{Hi #1}
-%    \newGstyledcmd{\via}{Catch you later}
-%    \styEndStyle
-%    \styEndGroup
-%
-%\begin{verbatim}
-%    \styBeginGroup{saluti}
-%      \styBeginStyle{formal}
-%        \newGstyledcmd{\ciao}[1]{Good morning #1}
-%        \newGstyledcmd{\via}{Goodbye}
-%      \styEndStyle
-%
-%      \styBeginStyle{informal}
-%        \newGstyledcmd{\ciao}[1]{Hi #1}
-%        \newGstyledcmd{\via}{Catch you later}
-%      \styEndStyle
-%    \styEndGroup
-%\end{verbatim}
-%We've defined the group \verb+saluti+ with two styles: \verb+formal+ and \verb+informal+. In that group are also defined the two commands \tn{ciao} and \tn{via} for both the styles. Since in \verb+saluti+ group the first defined style is \verb+formal+ it'll be also the default style for this group, so commands \verb+\ciao{Enrico}+ and \verb+\via+ will be expanded as \ciao{Enrico} and \via{}.
-%
-%If now we execute the command \setGroupStyle{saluti}{informal} \verb+\setGroupStyle{saluti}{informal}+ we change the default style to \verb+informal+ so the preceding commands this time will be expanded as \ciao{Enrico} and \via{}.
-%
-%You can also pass an optional argument for the style name you want to use, in particular \verb+\ciao[formal]{Enrico}+ will be always expanded as \ciao[formal]{Enrico}.
-%
-%\section{Generate more styled commands}
-%Suppose now that you've created your own version of \tn{newcommand} or \tn{NewDocumentCommand} in order to generate some classes of commands. Suppose that your function name is \tn{mynewcommand} and it accepts, like \tn{newcommand}, the new macro as its first argument. Then you can create styled commands with your own macro by using this function
-%\begin{function}{\stycmd_generate:NN, \stycmd_generate_renew:NN}
-%\begin{syntax}
-%|\stycmd_generate:NN| \meta{new generator name} \meta{generator name}
-%\end{syntax}
+%\begin{function}{\stycmd_expcmd:N}
+% \begin{syntax}
+%   \cs{stycmd_expcmd:N} \meta{command}
+% \end{syntax}
+% Creates the dispatch command with \tn{providecommand} with mandatory style name parameter (used in \tn{newstyledcmdExp}).
 %\end{function}
-%So for example executing
-%\begin{verbatim}
-% \stycmd_generate:NN\mynewstyledcommand\mynewcommand
-%\end{verbatim}
-%you'll create the new macro \tn{mynewstyledcommand} that accepts the command you want to define as first argument, the style you want to use as second argument and the remaining arguments are the same needed by \tn{mynewcommand}.
 %
-%Notice that \tn{newstyledcmd} is defined internally as
-%\begin{verbatim}
-% \stycmd_generate:NN \newstyledcmd \newcommand
-%\end{verbatim}
-%
-%Notice that \tn{mynewcommand} first argument has to be the macro you want to define, otherwise \cs{stycmd_generate:NN} will have undefined behaviour. The \cs{stycmd_generate_renew:NN} function should be used only for ''renew`` type commands that requires a preceding declaration, like \tn{renewcommand} and \tn{RenewDocumentCommand}.
-%
-%Actually there isn't any analogue proceeding for defining customized versions for \tn{newGstyledcmd} and \tn{NewGDocStyledCMD}.
+% If you don't specify the dispatch command generator (by using the |NN| variant) \cs{stycmd_xparsecmd:N} is used implicitly.
+%
+% \begin{function}{\stycmd_generate_renew:NN}
+%  \begin{syntax}
+%   \cs{stycmd_generate_renew:NN} \meta{updater name} \meta{ES commands generator}
+%  \end{syntax}
+%  Creates command \tn{\meta{updater name}} that modifies styles of commands already generated, like \tn{renewcommmand} edits commands generated by \tn{newcommand}.
+%
+% For example if you have \tn{createA} that creates commands and \tn{editA} that edits commands generated by \tn{createA} then
+% \begin{verbatim}
+%   \stycmd_generate:NN \createStyledA \createA
+% \end{verbatim}
+% creates styled commands by using \tn{createA} and
+% \begin{verbatim}
+%   \stycmd_generate_renew:NN \editStyledA \editA
+% \end{verbatim}
+% modifies commands generated by \tn{createStyledA} (by invoking \tn{editA}).
+% \end{function}
 %
 %\end{documentation}
 %
@@ -238,167 +258,270 @@
 %<@@=stycmd>
 %    \end{macrocode}
 %
-%\begin{variable}{\c__stycmd_defname_str}
-%the default style
+%\begin{variable}{\c_@@_cmdproxy_str}
+%Proxy used to generate styled commands
 %    \begin{macrocode}
-\str_const:Nn \c_@@_defname_str{ default }
+
+\str_const:Nx \c_@@_cmdproxy_str { \object_address:nn
+    { stycmd }{ proxy } }
+
+\proxy_create:nnN { stycmd }{ proxy } \c_object_public_str
+\proxy_push_member:Vnn \c_@@_cmdproxy_str { default }{ tl }
+
 %    \end{macrocode}
 %\end{variable}
 %
-%\begin{variable}{\l__stycmd_cexp_str, \l__stycmd_fexp_str}
-%Temporary variables to store expanded names.
+%\begin{macro}{\@@_cmd:n}
+% Entity name
 %    \begin{macrocode}
-\str_new:N \l_@@_cexp_str
-\str_new:N \l_@@_fexp_str
+
+\cs_new:Nn \@@_cmd:n
+  {
+    \object_address:nn{ stycmd }{ entity - #1 }
+  }
+
 %    \end{macrocode}
-%\end{variable}
+%\end{macro}
 %
-%\begin{macro}{\__stycmd_cmd:nn, \__stycmd_cmd:nV, \__stycmd_cmd:VV, \__stycmd_cmd:, \__stycmd_cmddefname:n}
-%Name of a command bounded to some style.
+%\begin{macro}{\@@_setdef_strip:Nn}
+%Changes the default style
 %    \begin{macrocode}
-\cs_new:Npn \__stycmd_cmd:nn #1#2{ @@_command_#1_#2 }
 
-\cs_generate_variant:Nn \@@_cmd:nn { nV }
-\cs_generate_variant:Nn \@@_cmd:nn { VV }
+\cs_new_protected:Nn \@@_setdef_aux:nN
+  {
+    \object_member_set:nnn
+      {
+        \@@_cmd:n{ #1 }
+      }
+      { default }
+      { #2 }
+  }
+\cs_generate_variant:Nn \@@_setdef_aux:nN { nc }
 
-\cs_new:Nn \@@_cmd:
+\cs_new_protected:Nn \@@_setdef_style:nn
   {
-    \@@_cmd:VV\l_@@_cexp_str\l_@@_fexp_str
+    \@@_setdef_aux:nc{ #1 }
+      {
+        \object_macro_adr:nn
+          {
+            \@@_cmd:n{ #1 }
+          }
+          {
+            style - #2
+          }
+      }
   }
 
-\cs_new:Npn \@@_cmddefname:n #1
+\cs_generate_variant:Nn \@@_setdef_style:nn { ff }
+
+\cs_new_protected:Nn \@@_setdef_strip:Nn
   {
-    \@@_cmd:nV { #1 } \c_@@_defname_str
+    \@@_setdef_style:ff{ \cs_to_str:N #1 }
+      { \tl_trim_spaces:n{ #2 } }
   }
+
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_erroring:nn, \__stycmd_erroring:nV, \__stycmd_erroring:VV}
-%Error messages for undefined styles.
+%\begin{macro}{\@@_cmd_define_strip:NNn}
+% Define a macro with the specified command
 %    \begin{macrocode}
-\msg_new:nnn { stycmd } { noformat }
+
+\cs_new_protected:Nn \@@_cmd_define_aux_aux:NN
   {
-    Style~#2~not~defined~for~command~#1
+    #1 { #2 }
   }
+\cs_generate_variant:Nn \@@_cmd_define_aux_aux:NN { Nc }
 
-\cs_new_protected:Npn\@@_erroring:nn #1#2
+\cs_new_protected:Nn \@@_cmd_define_aux:Nnn
   {
-    \cs_if_free:cT { \@@_cmd:nn {#1} {#2} }
-      { \msg_error:nnnn { stycmd } { noformat } {#1} {#2} }
+    \@@_cmd_define_aux_aux:Nc #1
+      {
+        \object_macro_adr:nn
+          {
+            \@@_cmd:n{ #2 }
+          }
+          {
+            style - #3
+          }
+      }
+  }
+
+\cs_generate_variant:Nn \@@_cmd_define_aux:Nnn { Nff }
+
+\cs_new_protected:Nn \@@_cmd_define_strip:NNn
+  {
+    \@@_cmd_define_aux:Nff #1
+      { \cs_to_str:N #2 }{ \tl_trim_spaces:n { #3 } }
   }
 
-\cs_generate_variant:Nn \@@_erroring:nn { nV, VV }
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_deferr:}
-%Error message when try to create the \verb+default+ style
+%\begin{macro}{\@@_cmd_usedef:N, \@@_cmd_usesty_strip:Nn}
+%Uses the styled command
 %    \begin{macrocode}
-\msg_new:nnn { stycmd } { deferror }
+
+\cs_new:Nn \@@_cmd_usedef_aux:n
   {
-    Cannot~define~a~style~with~name~default
+    \object_member_use:nn
+      {
+        \@@_cmd:n{ #1 }
+      }
+      {
+        default
+      }
   }
 
-\cs_new_protected:Nn\@@_deferr:
+\cs_generate_variant:Nn \@@_cmd_usedef_aux:n { f }
+
+\cs_new:Nn \@@_cmd_usedef:N
+  {
+    \@@_cmd_usedef_aux:f{ \cs_to_str:N #1 }
+  }
+
+
+\cs_new:Nn \@@_cmd_usesty_aux:nn
+  {
+    \object_macro_use:nn
+      {
+        \@@_cmd:n{ #1 }
+      }
+      {
+        style - #2
+      }
+  }
+
+\cs_generate_variant:Nn \@@_cmd_usesty_aux:nn { ff }
+
+\cs_new:Nn \@@_cmd_usesty_strip:Nn
   {
-    \str_if_eq:NNT \l_@@_fexp_str \c_@@_defname_str
-      { \msg_error:nn { stycmd } { deferror }  }
+    \@@_cmd_usesty_aux:ff{ \cs_to_str:N #1 }
+      { \tl_trim_spaces:n{ #2 } }
   }
+
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_macro_default:nn, \__stycmd_macro_default:VV}
-%Sets the default style to use.
+% \begin{macro}{\@@_entity_create_strip:Nnn}
+% Creates a new entity if it doesn't exists and execute following code
 %    \begin{macrocode}
-\cs_new_protected:Npn \@@_macro_default:nn #1#2
+
+\cs_new_protected:Nn \@@_entity_create_aux:nnn
   {
-    \exp_args:Nc \ProvideDocumentCommand { \@@_cmddefname:n { #1 } }
-      {}
+    \object_if_exist:nF
       {
-        \use:c { \@@_cmd:nn { #1 } { #2 } }
+        \@@_cmd:n{ #1 }
       }
+      {
+        \object_create:VnnNN \c_@@_cmdproxy_str
+          { stycmd }{ entity - #1 }
+          \c_object_global_str
+          \c_object_public_str
+
+        \@@_setdef_style:nn{ #1 }{ #2 }
+
+        #3
+      }
+  }
+
+\cs_generate_variant:Nn \@@_entity_create_aux:nnn { ffn }
+
+\cs_new_protected:Nn \@@_entity_create_strip:Nnn
+  {
+    \@@_entity_create_aux:ffn
+      { \cs_to_str:N #1 }
+      { \tl_trim_spaces:n{ #2 } }
+      { #3 }
   }
 
-\cs_generate_variant:Nn \@@_macro_default:nn { VV }
 %    \end{macrocode}
-%\end{macro}
+% \end{macro}
 %
-%\begin{macro}{\__stycmd_macro_overwrite:nn, \__stycmd_macro_overwrite:VV}
-%Overwrite the default style, not the command associated to that style.
+%\begin{macro}{\stycmd_xparsecmd:N}
+% Defines the main macro with \cs{ProvideDocumentCommand}.
 %    \begin{macrocode}
-\cs_new_protected:Npn \@@_macro_overwrite:nn #1#2
-  {
-    \@@_erroring:nn { #1 } { #2 }
 
-    \exp_args:Nc \RenewDocumentCommand { \@@_cmddefname:n { #1 } }
-      {}
+\cs_new_protected:Nn \stycmd_xparsecmd:N
+  {
+    \ProvideDocumentCommand { #1 } { o }
       {
-        \use:c { \@@_cmd:nn { #1 } { #2 } }
+        \IfNoValueTF {##1}
+          {
+            \@@_cmd_usedef:N #1
+          }
+          {
+            \@@_cmd_usesty_strip:Nn #1 { ##1 }
+          }
       }
   }
 
-\cs_generate_variant:Nn \@@_macro_overwrite:nn { VV }
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_macro_declaration:n, \__stycmd_macro_declaration:V}
-%Declare the effective macro. It'll overwrite existing \tn{l__stycmd_fexp_str}.
+%\begin{macro}{\stycmd_expcmd:N}
+% Defines the main macro with \tn{providecommand} but the style argument is mandatory in order to make the command expandable. To use default style pass an empty argument as style.
 %    \begin{macrocode}
-\cs_new_protected:Npn \@@_macro_declaration:n #1
+
+\cs_new_protected:Nn \stycmd_expcmd:N
   {
-    \exp_args:Nc \ProvideDocumentCommand { #1 } {o}
+    \providecommand { #1 } [1]
       {
-        \IfNoValueTF {##1}
+        \tl_if_empty:nTF {##1}
           {
-            \use:c { \@@_cmddefname:n { #1 } }
+            \@@_cmd_usedef:N #1
           }
           {
-            \str_set:Nx \l_@@_fexp_str {##1}
-            \@@_erroring:nV { #1 } \l_@@_fexp_str
-            \use:c{ \@@_cmd:nV { #1 } \l_@@_fexp_str }
+            \@@_cmd_usesty_strip:Nn #1 { ##1 }
           }
       }
   }
 
-\cs_generate_variant:Nn \__stycmd_macro_declaration:n { V }
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_init_vars:Nn}
-%Initializes system variables. First argument is the command name, second argument should be \verb+x+ expandable.
+%\begin{macro}{\SetGlobalStyle}
+%Change the default style for specified command
 %    \begin{macrocode}
-\cs_new_protected:Npn \@@_init_vars:Nn #1#2
+
+\NewDocumentCommand{\SetGlobalStyle}{m m}
   {
-    \str_set:Nx \l_@@_cexp_str { \cs_to_str:N #1 }
-    \str_set:Nx \l_@@_fexp_str {#2}
-    \@@_deferr:
+    \@@_setdef_strip:Nn #1 { #2 }
   }
+
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\stycmd_generate:NN, \stycmd_generate_renew:NN}
+%\begin{macro}{\stycmd_generate:NNN, \stycmd_generate:NN,  \stycmd_generate_renew:NN}
 %Declare the styled version \verb+#1+ of the macro generator command \verb+#2+. the \verb+_renew+ variant requires a preceding declaration
 %    \begin{macrocode}
-\cs_new_protected:Npn \stycmd_generate:NN #1#2
+
+\cs_new_protected:Nn \stycmd_generate:NNN
   {
-    \NewDocumentCommand #1 {m m}
+    \cs_new_protected:Npn #1 ##1 ##2
       {
-        \@@_init_vars:Nn { ##1 } { ##2 }
-        \@@_macro_default:VV \l_@@_cexp_str \l_@@_fexp_str
-        \@@_macro_declaration:V \l_@@_cexp_str
-        \exp_args:Nc #2 { \@@_cmd: }
+        \@@_entity_create_strip:Nnn ##1 { ##2 }
+          {
+            #3 ##1
+          }
+        \@@_cmd_define_strip:NNn #2 ##1 { ##2 }
       }
   }
 
-\cs_new_protected:Npn \stycmd_generate_renew:NN #1#2
+\cs_new_protected:Nn \stycmd_generate:NN
   {
-    \NewDocumentCommand #1 {m m}
+    \stycmd_generate:NNN #1 #2 \stycmd_xparsecmd:N
+  }
+
+
+\cs_new_protected:Nn \stycmd_generate_renew:NN
+  {
+    \cs_new_protected:Npn #1 ##1 ##2
       {
-        \@@_init_vars:Nn { ##1 } { ##2 }
-        \@@_erroring:VV \l_@@_cexp_str \l_@@_fexp_str
-        \exp_args:Nc #2 { \@@_cmd: }
+        \@@_cmd_define_strip:NNn #2 ##1 { ##2 }
       }
   }
+
 %    \end{macrocode}
 %\end{macro}
 %
@@ -420,149 +543,164 @@
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\setGlobalStyle}
-%Change the default style.
-%    \begin{macrocode}
-\NewDocumentCommand \setGlobalStyle{m m}{
-    \@@_init_vars:Nn { #1 } { #2 }
-
-    \@@_macro_overwrite:VV \l_@@_cexp_str \l_@@_fexp_str
-}
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{variable}{\l__stycmd_group_str, \l__stycmd_format_str}
-%Variables that stores group and format names.
-%    \begin{macrocode}
-\str_new:N \l_@@_group_str
-\str_new:N \l_@@_format_str
-%    \end{macrocode}
-%\end{variable}
-%
-%\begin{macro}{\__stycmd_gvar:n, \__stycmd_gvar:V, \__stycmd_gvar:}
-%Group command list.
+%\begin{macro}{\newstyledcmdExp, \renewstyledcmdExp, \providestyledcmdExp}
+%Declare a new macro with the specified style name.
 %    \begin{macrocode}
-\cs_new:Npn \@@_gvar:n #1 { g_@@_glist_#1_seq }
-
-\cs_generate_variant:Nn \@@_gvar:n { V }
-
-\cs_new:Nn \@@_gvar: { \@@_gvar:V \l_@@_group_str }
+\stycmd_generate:NNN \newstyledcmdExp \newcommand \stycmd_expcmd:N
+\stycmd_generate_renew:NN \renewstyledcmdExp \renewcommand
+\stycmd_generate:NNN \providestyledcmdExp \providecommand \stycmd_expcmd:N
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\__stycmd_push_g:Nn, \__stycmd_push_g:NV}
-%Pushes command name inside group command sequence. First argument is command, second is group name
+%\begin{macro}{\AddCMDToGroup}
+%Creates a group of commands
 %    \begin{macrocode}
-\cs_new_protected:Npn \@@_push_g:Nn #1#2
-  {
-    \seq_gput_left:cn { \@@_gvar:n { #2 } } { #1 }
-  }
 
-\cs_generate_variant:Nn \@@_push_g:Nn { NV }
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{macro}{\styBeginGroup}
-%Starts a group.
-%    \begin{macrocode}
-\msg_new:nnn { stycmd } { gnotclosed } { Group~not~closed }
+\str_new:N \g_@@_grproxy_str
+\seq_new:N \g_@@_tmp_seq
+\seq_new:N \g_@@_tmpb_seq
 
-\NewDocumentCommand \styBeginGroup { m }
-  {
-    \str_if_empty:NF \l_@@_group_str
-      {
-        \msg_error:nn { stycmd } { gnotclosed }
-      }
+\proxy_create_gset:NnnN \g_@@_grproxy_str { stycmd }{ groups }
+  \c_object_public_str
+  
+\proxy_push_member:Vnn \g_@@_grproxy_str { commands }{ seq }
 
-    \str_set:Nx \l_@@_group_str {#1}
+\cs_generate_variant:Nn \seq_gconcat:NNN { ccN }
 
-    \seq_if_exist:cF { \@@_gvar: }
-      { \seq_new:c { \@@_gvar: } }
-  }
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{macro}{\styEndGroup}
-%Closes a group.
-%    \begin{macrocode}
-\NewDocumentCommand \styEndGroup {}
+\cs_new_protected:Nn \@@_gconcat:nN
   {
-    \str_clear:N \l_@@_group_str
+    \seq_gconcat:ccN { #1 }{ #1 } #2
   }
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{macro}{\styBeginStyle}
-%Starts a style subgroup.
-%    \begin{macrocode}
-\msg_new:nnn { stycmd } { fnotclosed } { Format~not~closed }
-
-\NewDocumentCommand \styBeginStyle { m }
+  
+\cs_new_protected:Nn \@@_addgroup:nn
   {
-    \str_if_empty:NF \l_@@_format_str
+    \object_if_exist:nF
+      {
+        \object_address:nn{ stycmd }{ group - #1 }
+      }
       {
-        \msg_error:nn { stycmd } { fnotclosed }
+        \object_create:VnnNN \g_@@_grproxy_str
+          { stycmd }
+          { group - #1 }
+          \c_object_global_str
+          \c_object_public_str
       }
-    \str_set:Nx \l_@@_format_str {#1}
+      
+    \seq_gset_from_clist:Nn \g_@@_tmp_seq { #2 }
+    \seq_gset_map_x:NNn \g_@@_tmpb_seq \g_@@_tmp_seq 
+      {
+        \cs_to_str:N ##1 
+      }
+    
+    \@@_gconcat:nN
+      {
+      \object_member_adr:nnn
+        {
+          \object_address:nn
+            { stycmd }
+            { group - #1 }
+        }
+        { commands }
+        { seq }
+      } \g_@@_tmpb_seq
   }
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{macro}{\styEndStyle}
-%Closes a style subgroup.
-%    \begin{macrocode}
-\NewDocumentCommand \styEndStyle {}
+
+\cs_generate_variant:Nn \@@_addgroup:nn { fn }
+  
+\NewDocumentCommand{\AddCMDToGroup}{m m}
   {
-    \str_clear:N \l_@@_format_str
+    \@@_addgroup:fn { \tl_trim_spaces:n{ #1 } } { #2 }
   }
+
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\newGstyledcmd}
-%Declare a command inside a styled group.
+%\begin{macro}{\SetGroupStyle}
+%Change the default style for each command in the group.
 %    \begin{macrocode}
-\NewDocumentCommand \newGstyledcmd { m o +m }
+\NewDocumentCommand{\SetGroupStyle}{m m}
   {
-    \IfNoValueTF {#2}
+    \seq_map_inline:cn
       {
-        \newstyledcmd {#1} { \l_@@_format_str } {#3}
+        \object_member_adr:nnn
+          {
+            \object_address:nn
+              { stycmd }
+              { group - #1 }
+          }
+          { commands }
+          { seq }
       }
       {
-        \newstyledcmd {#1} { \l_@@_format_str } [#2] {#3}
+        \@@_setdef_style:nn{ ##1 }{ #2 }
       }
-    \@@_push_g:NV {#1} \l_@@_group_str
   }
 %    \end{macrocode}
 %\end{macro}
 %
-%\begin{macro}{\NewGDocStyledCMD}
-%Equivalent of \tn{NewDocStyledCMD} for command defined in a group.
+%Legacy commands
 %    \begin{macrocode}
-\NewDocumentCommand \NewGDocStyledCMD { m m +m }
+
+\msg_new:nnnn{ styledcmd }{ stydep }{ Old-fashioned~groups~for~styled~commands~are~deprecated }
   {
-    \NewDocStyledCMD {#1} { \l_@@_format_str } {#2} {#3}
+    From~version~2.0~of~styledcmd~you~should~use~new~group~commands~instea~of~old~ones,~see~official~documentation~on~CTAN.
+  }
+
+\str_new:N \g_@@_act_group_str
+\str_new:N \g_@@_act_style_str
 
-    \@@_push_g:NV {#1} \l_@@_group_str
+\NewDocumentCommand{\styBeginGroup}{ m }
+  {
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \str_gset:Nn \g_@@_act_group_str{ #1 }
   }
-%    \end{macrocode}
-%\end{macro}
-%
-%\begin{macro}{\setGroupStyle}
-%Change the default style for a group.
-%    \begin{macrocode}
-\NewDocumentCommand \setGroupStyle { m m }
+
+\NewDocumentCommand{\styEndGroup}{}
+  {
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \str_gset:Nn \g_@@_act_group_str{}
+  }
+
+\NewDocumentCommand{\styBeginStyle}{ m }
+  {
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \str_gset:Nn \g_@@_act_style_str{ #1 }
+  }
+
+\NewDocumentCommand{\styEndStyle}{}
+  {
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \str_gset:Nn \g_@@_act_style_str{}
+  }
+
+\cs_generate_variant:Nn \@@_addgroup:nn { Vn }
+
+\NewDocumentCommand{\newGstyledcmd}{m o m}
   {
-    \str_set:Nx \l_@@_group_str {#1}
-    \str_set:Nx \l_@@_format_str {#2}
-    \seq_map_inline:cn { \@@_gvar: }
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \@@_addgroup:Vn \g_@@_act_group_str { #1 }
+    \IfNoValueTF{ #2 }
       {
-        \setGlobalStyle {##1} { \l_@@_format_str }
+        \exp_args:NNV \newstyledcmd #1 \g_@@_act_style_str { #3 }
+      }
+      {
+        \exp_args:NNV \newstyledcmd #1 \g_@@_act_style_str [ #2 ] { #3 }
       }
-    \str_clear:N \l_@@_format_str
-    \str_clear:N \l_@@_group_str
   }
+
+\NewDocumentCommand{\NewGDocStyledCMD}{m m m}
+  {
+    \msg_warning:nn{ styledcmd }{ stydep }
+    \@@_addgroup:Vn \g_@@_act_group_str { #1 }
+    \exp_args:NNV \NewDocStyledCMD #1 \g_@@_act_style_str { #2 } { #3 }
+  }
+  
+ \NewDocumentCommand{\setGroupStyle}{m m}
+   {
+     \msg_warning:nn{ styledcmd }{ stydep }
+     \SetGroupStyle{ #1 }{ #2 }
+   }
 %    \end{macrocode}
-%\end{macro}
 %
 %    \begin{macrocode}
 %</package>
diff --git a/macros/latex/contrib/styledcmd/styledcmd.ins b/macros/latex/contrib/styledcmd/styledcmd.ins
index d314af58ae..1b48ace486 100644
--- a/macros/latex/contrib/styledcmd/styledcmd.ins
+++ b/macros/latex/contrib/styledcmd/styledcmd.ins
@@ -45,6 +45,7 @@ along with Styledcmd.  If not, see <https://www.gnu.org/licenses/>.
 
 \endpreamble
 
+\askforoverwritefalse
 \generate{\file{styledcmd.sty}{\from{styledcmd.dtx}{package}}}
 
 \obeyspaces
diff --git a/macros/latex/contrib/styledcmd/styledcmd.pdf b/macros/latex/contrib/styledcmd/styledcmd.pdf
index 34d9942d43..93082e4f08 100644
--- a/macros/latex/contrib/styledcmd/styledcmd.pdf
+++ b/macros/latex/contrib/styledcmd/styledcmd.pdf