diff --git a/data/templates/linear-algebra/base/exam.tex b/data/templates/linear-algebra/base/exam.tex
index 4c82b96..f5eed6f 100644
--- a/data/templates/linear-algebra/base/exam.tex
+++ b/data/templates/linear-algebra/base/exam.tex
@@ -1,53 +1,56 @@
 \documentclass[a4paper]{article}
 
 \usepackage[utf8]{inputenc} %Unicode
 \usepackage[T1]{fontenc}
+\usepackage{xcolor}
 \usepackage{fix-cm}
-
 \usepackage[lang=#LANG#,bloc]{automultiplechoice}
 
+% Color used for signature box
+\definecolor{light-Gray}{gray}{0.95}
+
 %%% Default packages
 \input{./packages.tex}
 % #COMMON_PACKAGES#		% Common packages for all exams
 % #EXTRA_PACKAGES#		% Extra packages for this exam
 
 %%% Formating specific to EPFL
 \input{./style_extra.tex}
 \input{./true-false.tex}	% Language dependent !
 \input{./question-text.tex}	% Language dependent !
 
 %%% Professor specific imports
 \input{./professor.tex}
 \input{./style_professor.tex}
 
 %%% New commands (or renewed)
 % #COMMON_COMMANDS#		% Common commands for all exams
 % #EXTRA_COMMANDS#		% Extra commands for this exam
 
 %%% Randomseed
 \input{./random-seed.tex}
 
 \begin{document}
 
 %%% Import sections
 \input{./sections.tex}
 
 \newcommand{\sujet}{
   \onecopy{1}{
   %%% debut de l'en-tête des copies :
   \input{./first_page.tex}
 
   \input{./random-sections.tex}
 
   % #EXTRA_SECTION#		% Extra section for this exam
 
   % Make sure that all the exams have the same number of pages (otherwise Repro will not be able to print!)
   \loop \ifnum \thepage < \totalPages  \clearpage ~ \repeat
 
   \AMCassociation{\ID}
   }
 }
 
 \csvreader[head to column names]{./students.csv}{}{\sujet}
 
 \end{document} 
diff --git a/data/templates/maths/base/exam.tex b/data/templates/maths/base/exam.tex
index 02c36d1..f5eed6f 100644
--- a/data/templates/maths/base/exam.tex
+++ b/data/templates/maths/base/exam.tex
@@ -1,56 +1,56 @@
 \documentclass[a4paper]{article}
 
 \usepackage[utf8]{inputenc} %Unicode
 \usepackage[T1]{fontenc}
 \usepackage{xcolor}
 \usepackage{fix-cm}
-
 \usepackage[lang=#LANG#,bloc]{automultiplechoice}
 
+% Color used for signature box
 \definecolor{light-Gray}{gray}{0.95}
 
 %%% Default packages
 \input{./packages.tex}
 % #COMMON_PACKAGES#		% Common packages for all exams
 % #EXTRA_PACKAGES#		% Extra packages for this exam
 
 %%% Formating specific to EPFL
 \input{./style_extra.tex}
 \input{./true-false.tex}	% Language dependent !
 \input{./question-text.tex}	% Language dependent !
 
 %%% Professor specific imports
 \input{./professor.tex}
 \input{./style_professor.tex}
 
 %%% New commands (or renewed)
 % #COMMON_COMMANDS#		% Common commands for all exams
 % #EXTRA_COMMANDS#		% Extra commands for this exam
 
 %%% Randomseed
 \input{./random-seed.tex}
 
 \begin{document}
 
 %%% Import sections
 \input{./sections.tex}
 
 \newcommand{\sujet}{
   \onecopy{1}{
   %%% debut de l'en-tête des copies :
   \input{./first_page.tex}
 
   \input{./random-sections.tex}
 
   % #EXTRA_SECTION#		% Extra section for this exam
 
   % Make sure that all the exams have the same number of pages (otherwise Repro will not be able to print!)
   \loop \ifnum \thepage < \totalPages  \clearpage ~ \repeat
 
   \AMCassociation{\ID}
   }
 }
 
 \csvreader[head to column names]{./students.csv}{}{\sujet}
 
 \end{document}