diff --git a/42MapGenerator.sh b/42MapGenerator.sh
index 09eb696..a95dbf8 100644
--- a/42MapGenerator.sh
+++ b/42MapGenerator.sh
@@ -50,10 +50,13 @@ fi
 GLOBAL_INSTALLDIR=$(mapgen_install_dir)
 cd "${GLOBAL_INSTALLDIR}"
 
+GLOBAL_VERSION=2
+GLOBAL_DISK_USAGE=
+GLOBAL_LOCALBRANCH=$(git branch | awk '$0 ~ /^\*/ {print $2; exit}')
 MAPGENERATOR_SH=1
 RETURNPATH=$(pwd | sed 's/ /\ /g')
-CVERSION=$(git log --oneline 2>/dev/null | awk 'END {printf NR}' | sed 's/ //g')
-if [ "$CVERSION" == "" ]; then CVERSION="???"; fi
+GLOBAL_CVERSION=$(git log --oneline 2>/dev/null | awk 'END {printf NR}' | sed 's/ //g')
+if [ -z "${GLOBAL_CVERSION}" ]; then GLOBAL_CVERSION="???"; fi
 
 
 source includes/maps.sh
@@ -66,6 +69,7 @@ source includes/display_section.sh
 source includes/display_error.sh
 source includes/display_success.sh
 source includes/display_right.sh
+source includes/display_leftandright.sh
 source includes/display_spinner.sh
 source includes/generate_map.sh
 source includes/download_map.sh
diff --git a/includes/display_center.sh b/includes/display_center.sh
index e90b11f..bd896ec 100644
--- a/includes/display_center.sh
+++ b/includes/display_center.sh
@@ -13,7 +13,7 @@ then
       printf "%"${MARGIN}"s" " "
       printf "$1"
       (( MARGIN= ${MARGIN} + (${COLUMNS} - ${LEN} - ${MARGIN} * 2) ))
-      printf "%"${MARGIN}"s" " "
+      printf "%"${MARGIN}"s\n" " "
     else
       printf "\n"
     fi
diff --git a/includes/display_header.sh b/includes/display_header.sh
index f432e97..5532413 100644
--- a/includes/display_header.sh
+++ b/includes/display_header.sh
@@ -5,24 +5,33 @@ then
 
   function display_header
   {
-    local MARGIN
+    local MARGIN COLOR
+
     utils_clear
     utils_set_env
-    if [ "$1" != "" ]
+    COLOR=${1}
+    if [ -z "${COLOR}" ]
+    then
+      COLOR="${C_INVERTGREY}"
+    fi
+    if [ "${GLOBAL_LOCALBRANCH}" == "master" ]
     then
-      printf "$1"
+      display_leftandright "${COLOR}" "${COLOR}" "${COLOR}" "DEVELOPMENT MODE" "${GLOBAL_LOCALBRANCH}"
     else
-      printf ${C_INVERT}""
+      if [ "${GLOBAL_DISK_USAGE}" -gt "100" ]
+      then
+        display_leftandright "${C_INVERTGREY}" "${COLOR}" "${COLOR}" "DISK USAGE: ${GLOBAL_DISK_USAGE}M" "PRESS ESCAPE TO EXIT - V${GLOBAL_VERSION}.r${GLOBAL_CVERSION}"
+      else
+        display_leftandright "${COLOR}" "${COLOR}" "${COLOR}" "DISK USAGE: ${GLOBAL_DISK_USAGE}M" "PRESS ESCAPE TO EXIT - V${GLOBAL_VERSION}.r${GLOBAL_CVERSION}"
+      fi
     fi
-    display_righttitle "PRESS ESCAPE TO EXIT - V2.r${CVERSION}"
     display_center "  _  _  ____  __  __              ____             "
     display_center " | || ||___ \|  \/  | __ _ _ __  / ___| ___ _ __   "
     display_center " | || |_ __) | |\/| |/ _\ | '_ \| |  _ / _ \ '_ \  "
     display_center " |__   _/ __/| |  | | (_| | |_) | |_| |  __/ | | | "
     display_center "    |_||_____|_|  |_|\__,_| .__/ \____|\___|_| |_| "
-    display_center " jgigault @ student.42.fr |_|       06 51 15 98 82 "
-    display_center " "
-    printf "${C_CLEAR}\n\n"
+    display_center "                          |_|                      "
+    printf "${C_CLEAR}\n"
   }
 
 fi
diff --git a/includes/display_leftandright.sh b/includes/display_leftandright.sh
new file mode 100644
index 0000000..23e4592
--- /dev/null
+++ b/includes/display_leftandright.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+if [ "${MAPGENERATOR_SH}" == "1" ]
+then
+
+  function display_leftandright
+  {
+    local COLORLEFT="${1}" COLORCENTER="${2}" COLORRIGHT="${3}" TEXTLEFT="${4}" TEXTRIGHT="${5}" LEN
+
+    LEN="$(( ${COLUMNS} - ${#TEXTLEFT} - ${#TEXTRIGHT} ))"
+    if [ "${LEN}" -ge "0" ]
+    then
+      printf "${COLORLEFT}%s${COLORCENTER}% ${LEN}s${COLORRIGHT}%s${C_CLEAR}\n" "${TEXTLEFT}" " " "${TEXTRIGHT}"
+    else
+      printf "${COLORLEFT}%- ${COLUMNS}s\n${COLORRIGHT}% ${COLUMNS}s${C_CLEAR}\n" "${TEXTLEFT}" "${TEXTRIGHT}"
+    fi
+  }
+
+fi
diff --git a/includes/formats.sh b/includes/formats.sh
deleted file mode 100644
index e69de29..0000000
diff --git a/includes/utils.sh b/includes/utils.sh
index 11123fb..38e931d 100644
--- a/includes/utils.sh
+++ b/includes/utils.sh
@@ -12,6 +12,7 @@ then
     then
       COLUMNS=80
     fi
+    GLOBAL_DISK_USAGE="$(du -ms | awk '$2 == "." {print $1}')"
     export LC_NUMERIC=C LC_COLLATE=C LANG=C
   }