Update install.sh

install.sh

@@ -137,12 +137,12 @@ install() {
 
     # Backup grub config
     if [[ -f /etc/default/grub.bak ]]; then
-		echo -ne "\n${b_CWAR}File '/etc/default/grub.bak' already exists. Remove it? [yN]${CDEF}"
+      prompt -w "\n File '/etc/default/grub.bak' already exists. Remove it? [y/N]"
       read choice
-		if [ "$choice" = 'y' ]; then
+      if [[ "$choice" = 'y' ]]; then
         cp -a /etc/default/grub /etc/default/grub.bak
       else
-			echo -ne "\n${b_CWAR}Skipping to save a backup configuration in '/etc/default/grub.bak'${CDEF}"
+        prompt -w "Skipping to save a backup configuration in '/etc/default/grub.bak'"
       fi
     else
       cp -a /etc/default/grub /etc/default/grub.bak
@@ -217,9 +217,9 @@ install() {
     fi
 
     # Update grub config
-    prompt -i "\n Updating grub config..."
+    prompt -i "\n Updating grub config... \n"
     updating_grub
-    prompt -w "\n * At the next restart of your computer you will see your new Grub theme: '$theme' "
+    prompt -w "\n * At the next restart of your computer you will see your new Grub theme: '$theme' \n"
 
   #Check if password is cached (if cache timestamp has not expired yet)
   elif sudo -n true 2> /dev/null && echo; then