diff --git a/lisp/my/my-org-article.el b/lisp/my/my-org-article.el
index c90daad0..94861542 100644
--- a/lisp/my/my-org-article.el
+++ b/lisp/my/my-org-article.el
@@ -86,173 +86,11 @@
       `((:results . "latex")
         (:exports . "results")
         (:headers . (lambda ()
-                    (if (org-export-derived-backend-p org-export-current-backend 'latex)
-                        ""
-                      "
-\\usepackage{xcolor}
-\\definecolor{color0}{HTML}{ffffff}
-\\definecolor{color1}{HTML}{0071bc}
-
-\\usepackage{pgfplots}
-\\usepgflibrary{shapes.geometric}
-\\usetikzlibrary{
-  arrows.meta,
-  arrows,
-  calc,
-  positioning,
-  shapes.multipart,
-  decorations.pathmorphing,
-  backgrounds,
-  pgfplotsclickable,
-  shadows,
-  shadows.blur,
-  mindmap,
-}
-
-% based on soul
-% \\highlight[tikz-opts]{...} like:
-% \\highlight{}
-% \\highlight[red]{}
-% \\highlight[green, draw=blue]{}
-\\makeatletter
-\\newcommand{\\defhighlighter}[3][]{%
-  \\tikzset{every highlighter/.style={color=#2, fill opacity=#3, #1}}%
-}
-\\defhighlighter{yellow}{.5}
-\\newcommand{\\highlight@DoHighlight}{
-  \\fill [ decoration = {random steps, amplitude=1pt, segment length=15pt}
-        , outer sep = -15pt, inner sep = 0pt, decorate
-        , every highlighter, this highlighter ]
-        ($(begin highlight)+(0,8pt)$) rectangle ($(end highlight)+(0,-3pt)$) ;
-}
-\\newcommand{\\highlight@BeginHighlight}{
-  \\coordinate (begin highlight) at (0,0) ;
-}
-\\newcommand{\\highlight@EndHighlight}{
-  \\coordinate (end highlight) at (0,0) ;
-}
-\\newdimen\\highlight@previous%
-\\newdimen\\highlight@current%
-\\DeclareRobustCommand*\\highlight[1][]{%
-  \\tikzset{this highlighter/.style={#1}}%
-  \\SOUL@setup%
-  %
-  \\def\\SOUL@preamble{%
-    \\begin{tikzpicture}[overlay, remember picture]
-      \\highlight@BeginHighlight
-     \\highlight@EndHighlight
-    \\end{tikzpicture}%
-  }%
-  %
-  \\def\\SOUL@postamble{%
-    \\begin{tikzpicture}[overlay, remember picture]
-      \\highlight@EndHighlight
-      \\highlight@DoHighlight
-    \\end{tikzpicture}%
-  }%
-  %
-  \\def\\SOUL@everyhyphen{%
-    \\discretionary{%
-      \\SOUL@setkern\\SOUL@hyphkern%
-      \\SOUL@sethyphenchar%
-      \\tikz[overlay, remember picture] \\highlight@EndHighlight ;%
-    }{%
-    }{%
-      \\SOUL@setkern\\SOUL@charkern%
-    }%
-  }%
-  %
-  \\def\\SOUL@everyexhyphen##1{%
-    \\SOUL@setkern\\SOUL@hyphkern%
-    \\hbox{##1}%
-    \\discretionary{%
-      \\tikz[overlay, remember picture] \\highlight@EndHighlight ;%
-    }{%
-    }{%
-      \\SOUL@setkern\\SOUL@charkern%
-    }%
-  }%
-  %
-  \\def\\SOUL@everysyllable{%
-    \\begin{tikzpicture}[overlay, remember picture]
-      \\path let \\p0 = (begin highlight), \\p1 = (0,0) in \\pgfextra
-        \\global\\highlight@previous=\\y0
-        \\global\\highlight@current =\\y1
-      \\endpgfextra (0,0) ;
-      \\ifdim\\highlight@current < \\highlight@previous
-        \\highlight@DoHighlight
-        \\highlight@BeginHighlight
-      \\fi
-    \\end{tikzpicture}%
-    \\the\\SOUL@syllable%
-    \\tikz[overlay, remember picture] \\highlight@EndHighlight ;%
-  }%
-  \\SOUL@%
-}
-\\makeatother
-
-\\pgfplotsset{
- % or newest,
-    compat=1.17,
-   % Komma statt Punkt als Dezimaltrennzeichen
-    x tick label style={/pgf/number format/use comma},
-    y tick label style={/pgf/number format/use comma},
-    every node near coord/.style={/pgf/number format/use comma},
-    /pgfplots/annot/js fillColor={[\"RGB\",1,1,1]},
-    every semilogy axis/.append style={/pgfplots/annot/point format={(\\%.1f,\\%.1e)}},
-    every semilogx axis/.append style={/pgfplots/annot/point format={(\\%.1e,\\%.1f)}},
-    every loglog axis/.append style={/pgfplots/annot/point format={(\\%.1e,\\%.1e)}}
-}
-
-% this must be under the configuration of x tick label
-% legend position outer south
-\\makeatletter
-\\pgfplotsset{
-    every axis x label/.append style={
-        alias=current axis xlabel
-    },
-    legend pos/outer south/.style={
-        /pgfplots/legend style={
-            at={%
-                (%
-                \\@ifundefined{pgf@sh@ns@current axis xlabel}%
-                {xticklabel cs:0.5}%
-                {current axis xlabel.south}%
-                )%
-            },
-            anchor=north
-        }
-    }
-}
-\\makeatother
-
-% !!!! in tikzset sind keine Leerzeilen erlaubt !!!!
-\\tikzset{
-    %scale a tikzpicture including texts
-    global scale/.style={
-           scale=#1,
-           every node/.style={scale=#1}
-    },
-    %Define standard arrow tip
-    >=stealth',
-    %Define standard node
-    %every text node part/.style={align=left},
-    % Colors
-}
-
-\\tikzset{
-    every pin/.style={fill=white,rectangle,rounded corners=3pt,font=\\small},
-    small dot/.style={fill=black,circle,scale=0.3},
-}
-
-")))
-        (:packages . "\\usepackage{xcolor}
-\\definecolor{color0}{HTML}{ffffff}
-\\definecolor{color1}{HTML}{0071bc}
-\\usepackage{svg}
-\\usepackage{tikz}
-\\usepackage{pgfplots}
-\\pgfplotsset{compat=newest, axis line style={white}, every axis label/.append style ={white}, every tick label/.append style={white},color0/.style={color=white}}"
+                      ;; define latex preamble part if used with ctrl-c-ctrl-c for example (the else part)
+                      (if (org-export-derived-backend-p org-export-current-backend 'latex)
+                          ""
+                        "")))
+        (:packages . ""
                    )))
 ;; Gnuplot
 (setq org-babel-default-header-args:gnuplot