diff --git a/commun/commun.sty b/commun/commun.sty
index c45fea4..b84d8c3 100644
--- a/commun/commun.sty
+++ b/commun/commun.sty
@@ -114,6 +114,7 @@
 \RequirePackage{inconsolata}
 \RequirePackage{tasks}
 \RequirePackage{dashrule}
+\RequirePackage{qrcode}
 % \RequirePackage[french]{algorithme}
 %--
 
@@ -142,6 +143,11 @@
   output-decimal-marker={,},
   inter-unit-product={\ensuremath{ { } \cdot { } }},
 }
+
+% caption
+\captionsetup{font=small}
+\captionsetup[figure]{labelfont=bf, textfont=it, name=Figure}
+\captionsetup[table]{labelfont=bf, textfont=it, name=Tableau}
 %--
 
 
diff --git a/jl-cours/.environments.tex.swp b/jl-cours/.environments.tex.swp
new file mode 100644
index 0000000..0bf870b
Binary files /dev/null and b/jl-cours/.environments.tex.swp differ
diff --git a/jl-cours/environments.tex b/jl-cours/environments.tex
index 2310cfa..27937ec 100644
--- a/jl-cours/environments.tex
+++ b/jl-cours/environments.tex
@@ -16,7 +16,7 @@
     }{
       % if subtitle
       \begin{@def1}[#2]
-        
+
     }
   }{
     % if not starred: without logo
diff --git a/jl-cours/mdtheorem.tex b/jl-cours/mdtheorem.tex
index 1bdc7eb..90739ef 100644
--- a/jl-cours/mdtheorem.tex
+++ b/jl-cours/mdtheorem.tex
@@ -12,9 +12,9 @@
 
 % definition
 \mdtheorem[style=pencil, theoremseparator={},
-           theoremspace={}, roundcorner=6pt]{@def1}{Définition}
+           theoremspace={}, roundcorner=6pt]{@def1}{\Jd Définition}
 \mdtheorem[style=nologo, theoremseparator={},
-           theoremspace={}, roundcorner=6pt]{@def2}{Définition}
+           theoremspace={}, roundcorner=6pt]{@def2}{\Jd Définition}
 
 \RenewDocumentEnvironment{@def1}{ o } {%begin
   \IfNoValueTF {#1} {
@@ -39,10 +39,10 @@
 % theoreme
 \mdtheorem[style=pencil, theoremseparator={},
            theoremspace={}, roundcorner=6pt,
-           outerlinewidth=1pt, outerlinecolor=black]{@thm1}{Théorème}
+           outerlinewidth=1pt, outerlinecolor=black]{@thm1}{\Jd Théorème}
 \mdtheorem[style=nologo, theoremseparator={},
            theoremspace={}, roundcorner=6pt,
-           outerlinewidth=1pt, outerlinecolor=black]{@thm2}{Théorème}
+           outerlinewidth=1pt, outerlinecolor=black]{@thm2}{\Jd Théorème}
 
 \RenewDocumentEnvironment{@thm1}{ o } {%begin
   \IfNoValueTF {#1} {
@@ -66,9 +66,9 @@
 
 % propriete
 \mdtheorem[style=pencil, theoremseparator={}, theoremspace={},
-           outerlinewidth=1pt, outerlinecolor=black]{@ppt1}{Propriété}
+           outerlinewidth=1pt, outerlinecolor=black]{@ppt1}{\Jd Propriété}
 \mdtheorem[style=nologo, theoremseparator={}, theoremspace={},
-           outerlinewidth=1pt, outerlinecolor=black]{@ppt2}{Propriété}
+           outerlinewidth=1pt, outerlinecolor=black]{@ppt2}{\Jd Propriété}
 
 \RenewDocumentEnvironment{@ppt1}{ o } {%begin
   \IfNoValueTF {#1} {
@@ -92,9 +92,9 @@
 
 % demonstration
 \mdtheorem[style=pencil, theoremseparator={},
-           theoremspace={}]{@dem1}{Démonstration}
+           theoremspace={}]{@dem1}{\Jd Démonstration}
 \mdtheorem[style=nologo, theoremseparator={},
-           theoremspace={}]{@dem2}{Démonstration}
+           theoremspace={}]{@dem2}{\Jd Démonstration}
 
 \RenewDocumentEnvironment{@dem1}{ o } {%begin
   \IfNoValueTF {#1} {
@@ -118,7 +118,7 @@
 
 % consequence
 \mdtheorem[style=nologo, theoremseparator={}, theoremspace={},
-           outerlinewidth=1pt, outerlinecolor=black]{@csq1}{Conséquence(s)}
+           outerlinewidth=1pt, outerlinecolor=black]{@csq1}{\Jd Conséquence(s)}
 \mdtheorem[style=nologo, theoremseparator={}, theoremspace={},
            outerlinewidth=1pt, outerlinecolor=black]{@csq2}{}
 
@@ -141,12 +141,12 @@
 }{%end
   \end{@csq2*}
 }
-           
+
 % vocabulaire
 \mdtheorem[style=pencil, theoremseparator={},
-           theoremspace={}]{@voc1}{Vocabulaire}
+           theoremspace={}]{@voc1}{\Jd Vocabulaire}
 \mdtheorem[style=nologo, theoremseparator={},
-          theoremspace={}]{@voc2}{Vocabulaire}
+          theoremspace={}]{@voc2}{\Jd Vocabulaire}
 
 \RenewDocumentEnvironment{@voc1}{ o } {%begin
   \IfNoValueTF {#1} {
@@ -184,7 +184,7 @@
 
 % remarque
 \mdtheorem[style=warning, theoremseparator={ -},
-           theoremspace={}]{@rmq1}{Remarque(s)}
+           theoremspace={}]{@rmq1}{\Jd Remarque(s)}
 \mdtheorem[style=warning, theoremseparator={},
            theoremspace={}]{@rmq2}{}
 
@@ -209,7 +209,7 @@
 }
 
 % exemple
-\mdtheorem[style=eye, theoremseparator={ -}, theoremspace={}]{@exe1}{ Exemple(s)}
+\mdtheorem[style=eye, theoremseparator={ -}, theoremspace={}]{@exe1}{\Jd Exemple(s)}
 \mdtheorem[style=eye, theoremseparator={}, theoremspace={}]{@exe2}{}
 
 \RenewDocumentEnvironment{@exe1}{ o } {%begin
@@ -234,7 +234,7 @@
 
 % application
 \mdtheorem[style=cogs, theoremseparator={},
-           theoremspace={}]{@app1}{Application}
+           theoremspace={}]{@app1}{\Jd Application}
 \mdtheorem[style=cogs, theoremseparator={},
           theoremspace={}]{@app2}{}
 
@@ -260,7 +260,7 @@
 
 % methode
 \mdtheorem[style=bookmark, theoremseparator={ -},
-           theoremspace={}]{@met1}{Méthode}
+           theoremspace={}]{@met1}{\Jd Méthode}
 \mdtheorem[style=noborder, theoremseparator={},
            theoremspace={}]{@met2}{}
 
@@ -297,7 +297,7 @@
   % composants du titre du thm : \thmname = nom, \thmnumber = numéro, \thmnote = sous-titre
 
 \theoremstyle{@exo1}
-\newtheorem{exercice1}{Exercice}
+\newtheorem{exercice1}{\Jd Exercice}
 
 % exercice
 \newtheoremstyle{@exo2}
@@ -312,7 +312,7 @@
 % composants du titre du thm : \thmname = nom, \thmnumber = numéro, \thmnote = sous-titre
 
 \theoremstyle{@exo2}
-\newtheorem*{exercice2}{Exercice}
+\newtheorem*{exercice2}{\Jd Exercice}
 
 \counterwithin*{exercice1}{section}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%