diff --git a/install.sh b/install.sh
index d6718e8..853b450 100644
--- a/install.sh
+++ b/install.sh
@@ -1,14 +1,14 @@
-
 #!/bin/sh
-VERT="\\033[1;32m"
-NORMAL="\\033[0;39m"
-ROUGE="\\033[1;31m"
-ROSE="\\033[1;35m"
-BLEU="\\033[1;34m"
-BLANC="\\033[0;02m"
-BLANCLAIR="\\033[1;08m"
-JAUNE="\\033[1;33m"
-CYAN="\\033[1;36m"
+Black='\033[0;30m'
+Red='\033[0;31m'
+Green='\033[0;32m'
+Yellow='\033[0;33m'
+Blue='\033[0;34m'
+Purple='\033[0;35m'
+Cyan='\033[0;36m'
+White='\033[0;37m'
+
+NORMAL=$(tput sgr0)
 
 if [ $(id -u) != 0 ] ; then
   echo "Super-user (root) rights are required to install "
@@ -18,39 +18,39 @@ fi
 
 apt_install() {
   if [ $? -ne 0 ]; then
-    echo "${ROUGE}Cannot install $@ - Cancellation${NORMAL}"
+    echo "${Red}Cannot install $@ - Cancellation${NORMAL}"
     exit 1
   fi
 }
 
 step_1_upgrade() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 1 Update and base pakage${NORMAL}"
+  echo "${Yellow}Starting step 1 Update and base pakage${NORMAL}"
   apt update
   apt upgrade -y
   apt install -y curl
   apt install -y npm
-  echo "${VERT}Step 1 completed${NORMAL}"
+  echo "${Green}Step 1 completed${NORMAL}"
 }
 
 step_2_node_install() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 2 Node v14 install${NORMAL}"
+  echo "${Yellow}Starting step 2 Node v14 install${NORMAL}"
   curl -fsSL https://deb.nodesource.com/setup_14.x | bash -
   apt install -y nodejs
-  echo "${VERT}Step 2 completed${NORMAL}"
+  echo "${Green}Step 2 completed${NORMAL}"
 }
 
 step_3_yarn_install() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 3 Yarn install${NORMAL}"
+  echo "${Yellow}Starting step 3 Yarn install${NORMAL}"
   npm install --global yarn
-  echo "${VERT}Step 3 completed${NORMAL}"
+  echo "${Green}Step 3 completed${NORMAL}"
 }
 
 step_4_packages_install() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 4 XO packages install${NORMAL}"
+  echo "${Yellow}Starting step 4 XO packages install${NORMAL}"
   apt install -y build-essential
   apt install -y redis-server
   apt install -y libpng-dev
@@ -59,19 +59,19 @@ step_4_packages_install() {
   apt install -y libvhdi-utils
   apt install -y lvm2
   apt install -y cifs-utils
-  echo "${VERT}Step 4 completed${NORMAL}"
+  echo "${Green}Step 4 completed${NORMAL}"
 }
 
 step_5_fetching_xo_code() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 5 fetching the XO code${NORMAL}"
+  echo "${Yellow}Starting step 5 fetching the XO code${NORMAL}"
   git clone -b master https://github.com/vatesfr/xen-orchestra
-  echo "${VERT}Step 5 completed${NORMAL}"
+  echo "${Green}Step 5 completed${NORMAL}"
 }
 
 step_6_dependencies_install() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 6 Dependency install${NORMAL}"
+  echo "${Yellow}Starting step 6 Dependency install${NORMAL}"
   cd xen-orchestra
   yarn
   yarn build
@@ -83,21 +83,21 @@ step_6_dependencies_install() {
 
 step_7_xo_running() {
   echo "---------------------------------------------------------------------"
-  echo "${JAUNE}Starting step 7 running XO${NORMAL}"
+  echo "${Yellow}Starting step 7 running XO${NORMAL}"
   yarn start
-  echo "${VERT}Step 7 completed${NORMAL}"
+  echo "${Green}Step 7 completed${NORMAL}"
 }
 
 
 STEP=0
 
-echo "${JAUNE}Welcome to XO installer${NORMAL}"
-echo "${JAUNE}XO version : from sources${NORMAL}"
-echo "${JAUNE}XO folder : xen-orchestra/packages/xo-server${NORMAL}"
+echo "${Yellow}Welcome to XO installer${NORMAL}"
+echo "${Yellow}XO version : from sources${NORMAL}"
+echo "${Yellow}XO folder : xen-orchestra/packages/xo-server${NORMAL}"
 
 case ${STEP} in
   0)
-  echo "${JAUNE}Commence toutes les étapes de l'installation${NORMAL}"
+  echo "${Yellow}Commence toutes les étapes de l'installation${NORMAL}"
   step_1_upgrade
   step_2_node_install
   step_3_yarn_install
@@ -121,7 +121,7 @@ case ${STEP} in
   ;;
   7) step_7_xo_running
   ;;
-  *) echo "${ROUGE}Sorry, I cannot select a ${STEP} step for you!${NORMAL}"
+  *) echo "${Red}Sorry, I cannot select a ${STEP} step for you!${NORMAL}"
   ;;
 esac