udpate prompt

bashrc

@@ -453,9 +453,10 @@ __my_prompt_function(){              # used by PS1
         local c3=
         local cdef=
     else
-        local c1="\e[31m"
-        local c2="\e[32m"
-        local c3="\e[37m"
+        local c1="\e[31m"       # color for PWD
+        local c2="\e[36m"       # color for user
+        local c3="\e[37m"       # color for OLDPWD
+        local c4="\e[32m"       # color for ::
         local cdef="\e[0m"
     fi
     if iswindows
@@ -482,9 +483,9 @@ __my_prompt_function(){              # used by PS1
     fi
     # local battery=$(battery-state [%s] | sed -e 's`%`%%`g') # very slow
 
-    printf " [${c1}${pwd}${cdef}<${c3}${oldpwd}${cdef}]${git}${svn}${battery}${ip}\n"
-    printf "${c2}${USER}@${HOSTNAME}${cdef} ${date}\n"
-    printf "shlv:${SHLVL} dirs:${dirs} last:${lastreturn} "
+    printf "${c4}:: ${cdef}[${c1}${pwd}${cdef}<${c3}${oldpwd}${cdef}]${git}${svn}${battery}${ip}\n"
+    printf "${c4}:: ${c2}${USER}@${HOSTNAME}${cdef} ${date}\n"
+    printf "${c4}:: ${cdef}shlv:${SHLVL} dirs:${dirs} last:${lastreturn} "
 
 }
 __my_set_title(){